530939904 has 128 divisors (see below), whose sum is σ = 1547674560. Its totient is φ = 160563200.

The previous prime is 530939891. The next prime is 530939909. The reversal of 530939904 is 409939035.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530939909) 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, 1081099 + ... + 1081589.

Almost surely, 2^530939904 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 530939904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (773837280).

530939904 is an abundant number, since it is smaller than the sum of its proper divisors (1016734656).

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

530939904 is an equidigital number, since it uses as much as digits as its factorization.

530939904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 42.

The square root of 530939904 is about 23042.1332345770. The cubic root of 530939904 is about 809.7453367997.

The spelling of 530939904 in words is "five hundred thirty million, nine hundred thirty-nine thousand, nine hundred four".