120242040 has 32 divisors (see below), whose sum is σ = 360726480. Its totient is φ = 32064512.

The previous prime is 120242021. The next prime is 120242063. The reversal of 120242040 is 40242021.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 7 ways as a sum of consecutive naturals, for example, 500889 + ... + 501128.

Almost surely, 2^120242040 is an apocalyptic number.

120242040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120242040 is an abundant number, since it is smaller than the sum of its proper divisors (240484440).

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

120242040 is a wasteful number, since it uses less digits than its factorization.

120242040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002031 (or 1002027 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 120242040 is about 10965.4931489651. The cubic root of 120242040 is about 493.5738154711.

Adding to 120242040 its reverse (40242021), we get a palindrome (160484061).

The spelling of 120242040 in words is "one hundred twenty million, two hundred forty-two thousand, forty".