39299872 has 24 divisors (see below), whose sum is σ = 80041500. Its totient is φ = 18971904.

The previous prime is 39299861. The next prime is 39299879. The reversal of 39299872 is 27899293.

It can be written as a sum of positive squares in 2 ways, for example, as 35473936 + 3825936 = 5956^2 + 1956^2 .

It is not an unprimeable number, because it can be changed into a prime (39299879) 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, 20247 + ... + 22102.

Almost surely, 2^39299872 is an apocalyptic number.

39299872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

39299872 is an abundant number, since it is smaller than the sum of its proper divisors (40741628).

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

39299872 is a wasteful number, since it uses less digits than its factorization.

39299872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42388 (or 42380 counting only the distinct ones).

The product of its digits is 489888, while the sum is 49.

The square root of 39299872 is about 6268.9609984430. The cubic root of 39299872 is about 339.9880964691.

The spelling of 39299872 in words is "thirty-nine million, two hundred ninety-nine thousand, eight hundred seventy-two".