39673872 has 60 divisors (see below), whose sum is σ = 126896640. Its totient is φ = 11335104.

The previous prime is 39673867. The next prime is 39673889. The reversal of 39673872 is 27837693.

It is a happy number.

It is a super-2 number, since 2×39673872² = 3148032238944768, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18672 + ... + 20687.

It is an arithmetic number, because the mean of its divisors is an integer number (2114944).

Almost surely, 2^39673872 is an apocalyptic number.

It is an amenable number.

39673872 is an abundant number, since it is smaller than the sum of its proper divisors (87222768).

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

39673872 is a wasteful number, since it uses less digits than its factorization.

39673872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39380 (or 39371 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 39673872 is about 6298.7198699418. The cubic root of 39673872 is about 341.0632001033.

The spelling of 39673872 in words is "thirty-nine million, six hundred seventy-three thousand, eight hundred seventy-two".