39397152 has 24 divisors (see below), whose sum is σ = 103417776. Its totient is φ = 13132352.

The previous prime is 39397123. The next prime is 39397153. The reversal of 39397152 is 25179393.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×39397152² = 3104271171422208, 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 39397152.

It is not an unprimeable number, because it can be changed into a prime (39397153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205098 + ... + 205289.

It is an arithmetic number, because the mean of its divisors is an integer number (4309074).

Almost surely, 2^39397152 is an apocalyptic number.

39397152 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

39397152 is an abundant number, since it is smaller than the sum of its proper divisors (64020624).

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

39397152 is a wasteful number, since it uses less digits than its factorization.

39397152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410400 (or 410392 counting only the distinct ones).

The product of its digits is 51030, while the sum is 39.

The square root of 39397152 is about 6276.7150644266. The cubic root of 39397152 is about 340.2683924610.

The spelling of 39397152 in words is "thirty-nine million, three hundred ninety-seven thousand, one hundred fifty-two".