938457972 has 72 divisors (see below), whose sum is σ = 2433727296. Its totient is φ = 304746624.

The previous prime is 938457967. The next prime is 938458019. The reversal of 938457972 is 279754839.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1001088 + ... + 1002024.

It is an arithmetic number, because the mean of its divisors is an integer number (33801768).

Almost surely, 2^938457972 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 938457972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1216863648).

938457972 is an abundant number, since it is smaller than the sum of its proper divisors (1495269324).

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

938457972 is a wasteful number, since it uses less digits than its factorization.

938457972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637 (or 1632 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 54.

The square root of 938457972 is about 30634.2614077768. The cubic root of 938457972 is about 979.0501597943.

The spelling of 938457972 in words is "nine hundred thirty-eight million, four hundred fifty-seven thousand, nine hundred seventy-two".