538831072 has 48 divisors (see below), whose sum is σ = 1164028320. Its totient is φ = 243988992.

The previous prime is 538831063. The next prime is 538831087. The reversal of 538831072 is 270138835.

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, 9829 + ... + 34267.

It is an arithmetic number, because the mean of its divisors is an integer number (24250590).

Almost surely, 2^538831072 is an apocalyptic number.

538831072 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538831072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (582014160).

538831072 is an abundant number, since it is smaller than the sum of its proper divisors (625197248).

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

538831072 is a wasteful number, since it uses less digits than its factorization.

538831072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24515 (or 24507 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 538831072 is about 23212.7351253574. The cubic root of 538831072 is about 813.7372755350.

The spelling of 538831072 in words is "five hundred thirty-eight million, eight hundred thirty-one thousand, seventy-two".