120403420 has 24 divisors (see below), whose sum is σ = 253915200. Its totient is φ = 47957952.

The previous prime is 120403379. The next prime is 120403427. The reversal of 120403420 is 24304021.

It is a junction number, because it is equal to n+sod(n) for n = 120403394 and 120403403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120403427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7815 + ... + 17374.

It is an arithmetic number, because the mean of its divisors is an integer number (10579800).

Almost surely, 2^120403420 is an apocalyptic number.

120403420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120403420 is an abundant number, since it is smaller than the sum of its proper divisors (133511780).

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

120403420 is a wasteful number, since it uses less digits than its factorization.

120403420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25437 (or 25435 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 120403420 is about 10972.8492197788. The cubic root of 120403420 is about 493.7945295523.

Adding to 120403420 its reverse (24304021), we get a palindrome (144707441).

The spelling of 120403420 in words is "one hundred twenty million, four hundred three thousand, four hundred twenty".