39938427 has 10 divisors (see below), whose sum is σ = 59661228. Its totient is φ = 26625564.

The previous prime is 39938413. The next prime is 39938449. The reversal of 39938427 is 72483993.

It is a happy number.

It is not a de Polignac number, because 39938427 - 2⁴ = 39938411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39938477) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 246453 + ... + 246614.

Almost surely, 2^39938427 is an apocalyptic number.

39938427 is a deficient number, since it is larger than the sum of its proper divisors (19722801).

39938427 is an equidigital number, since it uses as much as digits as its factorization.

39938427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493079 (or 493070 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 39938427 is about 6319.6856725632. The cubic root of 39938427 is about 341.8196186361.

The spelling of 39938427 in words is "thirty-nine million, nine hundred thirty-eight thousand, four hundred twenty-seven".