538944512 has 44 divisors (see below), whose sum is σ = 1081773996. Its totient is φ = 268369920.

The previous prime is 538944503. The next prime is 538944547. The reversal of 538944512 is 215449835.

It can be written as a sum of positive squares in 2 ways, for example, as 154157056 + 384787456 = 12416^2 + 19616^2 .

It is a super-2 number, since 2×538944512² = 580922374029836288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 538944512.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286808 + ... + 288680.

Almost surely, 2^538944512 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 538944512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (540886998).

538944512 is an abundant number, since it is smaller than the sum of its proper divisors (542829484).

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

538944512 is a wasteful number, since it uses less digits than its factorization.

538944512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2174 (or 2156 counting only the distinct ones).

The product of its digits is 172800, while the sum is 41.

The square root of 538944512 is about 23215.1784830528. The cubic root of 538944512 is about 813.7943768444.

The spelling of 538944512 in words is "five hundred thirty-eight million, nine hundred forty-four thousand, five hundred twelve".