538538720 has 24 divisors (see below), whose sum is σ = 1272298104. Its totient is φ = 215415424.

The previous prime is 538538719. The next prime is 538538783. The reversal of 538538720 is 27835835.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1682774 + ... + 1683093.

It is an arithmetic number, because the mean of its divisors is an integer number (53012421).

Almost surely, 2^538538720 is an apocalyptic number.

It is an amenable number.

538538720 is an abundant number, since it is smaller than the sum of its proper divisors (733759384).

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

538538720 is a wasteful number, since it uses less digits than its factorization.

538538720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3365882 (or 3365874 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 538538720 is about 23206.4370380289. The cubic root of 538538720 is about 813.5900798921.

The spelling of 538538720 in words is "five hundred thirty-eight million, five hundred thirty-eight thousand, seven hundred twenty".