39948730 has 16 divisors (see below), whose sum is σ = 72775584. Its totient is φ = 15786640.

The previous prime is 39948709. The next prime is 39948743. The reversal of 39948730 is 3784993.

It is a super-2 number, since 2×39948730² = 3191802057225800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23236 + ... + 24895.

It is an arithmetic number, because the mean of its divisors is an integer number (4548474).

Almost surely, 2^39948730 is an apocalyptic number.

39948730 is a deficient number, since it is larger than the sum of its proper divisors (32826854).

39948730 is a wasteful number, since it uses less digits than its factorization.

39948730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48221.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 39948730 is about 6320.5007712997. The cubic root of 39948730 is about 341.8490094175.

The spelling of 39948730 in words is "thirty-nine million, nine hundred forty-eight thousand, seven hundred thirty".