120402504 has 64 divisors (see below), whose sum is σ = 337824000. Its totient is φ = 39729600.

The previous prime is 120402479. The next prime is 120402509. The reversal of 120402504 is 405204021.

120402504 is a `hidden beast` number, since 120 + 40 + 2 + 504 = 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 (120402509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19057 + ... + 24575.

It is an arithmetic number, because the mean of its divisors is an integer number (5278500).

Almost surely, 2^120402504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120402504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168912000).

120402504 is an abundant number, since it is smaller than the sum of its proper divisors (217421496).

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

120402504 is a wasteful number, since it uses less digits than its factorization.

120402504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5635 (or 5625 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 120402504 is about 10972.8074803124. The cubic root of 120402504 is about 493.7932773261.

Adding to 120402504 its reverse (405204021), we get a palindrome (525606525).

The spelling of 120402504 in words is "one hundred twenty million, four hundred two thousand, five hundred four".