838117572 has 48 divisors (see below), whose sum is σ = 2009116032. Its totient is φ = 271768320.

The previous prime is 838117549. The next prime is 838117573. The reversal of 838117572 is 275711838.

It is not an unprimeable number, because it can be changed into a prime (838117573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181233 + ... + 185799.

It is an arithmetic number, because the mean of its divisors is an integer number (41856584).

Almost surely, 2^838117572 is an apocalyptic number.

838117572 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

838117572 is an abundant number, since it is smaller than the sum of its proper divisors (1170998460).

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

838117572 is a wasteful number, since it uses less digits than its factorization.

838117572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4988 (or 4986 counting only the distinct ones).

The product of its digits is 94080, while the sum is 42.

The square root of 838117572 is about 28950.2603097105. The cubic root of 838117572 is about 942.8334499228.

The spelling of 838117572 in words is "eight hundred thirty-eight million, one hundred seventeen thousand, five hundred seventy-two".