120234420 has 72 divisors (see below), whose sum is σ = 367567200. Its totient is φ = 31811520.

The previous prime is 120234403. The next prime is 120234437. The reversal of 120234420 is 24432021.

120234420 is a `hidden beast` number, since 12 + 0 + 234 + 420 = 666.

It is an interprime number because it is at equal distance from previous prime (120234403) and next prime (120234437).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 120234393 and 120234402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21031 + ... + 26129.

It is an arithmetic number, because the mean of its divisors is an integer number (5105100).

Almost surely, 2^120234420 is an apocalyptic number.

120234420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120234420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183783600).

120234420 is an abundant number, since it is smaller than the sum of its proper divisors (247332780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120234420 is a wasteful number, since it uses less digits than its factorization.

120234420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5245 (or 5240 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 120234420 is about 10965.1456898666. The cubic root of 120234420 is about 493.5633889682.

Adding to 120234420 its reverse (24432021), we get a palindrome (144666441).

The spelling of 120234420 in words is "one hundred twenty million, two hundred thirty-four thousand, four hundred twenty".