539643264 has 64 divisors (see below), whose sum is σ = 1457784000. Its totient is φ = 176824832.

The previous prime is 539643253. The next prime is 539643277. The reversal of 539643264 is 462346935.

It is a tau number, because it is divible by the number of its divisors (64).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10747 + ... + 34565.

It is an arithmetic number, because the mean of its divisors is an integer number (22777875).

Almost surely, 2^539643264 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 539643264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (728892000).

539643264 is an abundant number, since it is smaller than the sum of its proper divisors (918140736).

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

539643264 is a wasteful number, since it uses less digits than its factorization.

539643264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23895 (or 23883 counting only the distinct ones).

The product of its digits is 466560, while the sum is 42.

The square root of 539643264 is about 23230.2230725407. The cubic root of 539643264 is about 814.1459250165.

The spelling of 539643264 in words is "five hundred thirty-nine million, six hundred forty-three thousand, two hundred sixty-four".