120512340 has 96 divisors (see below), whose sum is σ = 403791360. Its totient is φ = 29662848.

The previous prime is 120512333. The next prime is 120512363. The reversal of 120512340 is 43215021.

120512340 is a `hidden beast` number, since 120 + 512 + 34 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1564 + ... + 15603.

It is an arithmetic number, because the mean of its divisors is an integer number (4206160).

Almost surely, 2^120512340 is an apocalyptic number.

120512340 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 120512340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201895680).

120512340 is an abundant number, since it is smaller than the sum of its proper divisors (283279020).

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

120512340 is a wasteful number, since it uses less digits than its factorization.

120512340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17198 (or 17190 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 120512340 is about 10977.8112572589. The cubic root of 120512340 is about 493.9433843776.

Adding to 120512340 its reverse (43215021), we get a palindrome (163727361).

The spelling of 120512340 in words is "one hundred twenty million, five hundred twelve thousand, three hundred forty".