39520038 has 16 divisors (see below), whose sum is σ = 83200320. Its totient is φ = 12479976.

The previous prime is 39519983. The next prime is 39520043. The reversal of 39520038 is 83002593.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 39519987 and 39520014.

It is a congruent number.

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, 173220 + ... + 173447.

It is an arithmetic number, because the mean of its divisors is an integer number (5200020).

Almost surely, 2^39520038 is an apocalyptic number.

39520038 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

39520038 is an abundant number, since it is smaller than the sum of its proper divisors (43680282).

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

39520038 is a wasteful number, since it uses less digits than its factorization.

39520038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346691.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 39520038 is about 6286.4964805526. The cubic root of 39520038 is about 340.6218090546.

The spelling of 39520038 in words is "thirty-nine million, five hundred twenty thousand, thirty-eight".