538045320 has 64 divisors (see below), whose sum is σ = 1616541120. Its totient is φ = 143265024.

The previous prime is 538045307. The next prime is 538045349. The reversal of 538045320 is 23540835.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 15 ways as a sum of consecutive naturals, for example, 87879 + ... + 93801.

It is an arithmetic number, because the mean of its divisors is an integer number (25258455).

Almost surely, 2^538045320 is an apocalyptic number.

It is an amenable number.

538045320 is an abundant number, since it is smaller than the sum of its proper divisors (1078495800).

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

538045320 is a wasteful number, since it uses less digits than its factorization.

538045320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6694 (or 6690 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 538045320 is about 23195.8039308837. The cubic root of 538045320 is about 813.3415381835.

The spelling of 538045320 in words is "five hundred thirty-eight million, forty-five thousand, three hundred twenty".