120621042 has 16 divisors (see below), whose sum is σ = 268046880. Its totient is φ = 40206996.

The previous prime is 120621029. The next prime is 120621043. The reversal of 120621042 is 240126021.

120621042 is a `hidden beast` number, since 1 + 2 + 0 + 621 + 0 + 42 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (120621043) 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, 1116808 + ... + 1116915.

It is an arithmetic number, because the mean of its divisors is an integer number (16752930).

Almost surely, 2^120621042 is an apocalyptic number.

120621042 is an abundant number, since it is smaller than the sum of its proper divisors (147425838).

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

120621042 is a wasteful number, since it uses less digits than its factorization.

120621042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2233734 (or 2233728 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 120621042 is about 10982.7611282409. The cubic root of 120621042 is about 494.0918518797.

Adding to 120621042 its reverse (240126021), we get a palindrome (360747063).

The spelling of 120621042 in words is "one hundred twenty million, six hundred twenty-one thousand, forty-two".