520439432 has 8 divisors (see below), whose sum is σ = 975823950. Its totient is φ = 260219712.

The previous prime is 520439429. The next prime is 520439441. The reversal of 520439432 is 234934025.

It can be written as a sum of positive squares in only one way, i.e., 493461796 + 26977636 = 22214^2 + 5194^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32527457 + ... + 32527472.

Almost surely, 2^520439432 is an apocalyptic number.

It is an amenable number.

520439432 is a deficient number, since it is larger than the sum of its proper divisors (455384518).

520439432 is a wasteful number, since it uses less digits than its factorization.

520439432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65054935 (or 65054931 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 520439432 is about 22813.1416512501. The cubic root of 520439432 is about 804.3716053204.

The spelling of 520439432 in words is "five hundred twenty million, four hundred thirty-nine thousand, four hundred thirty-two".