39998976 has 40 divisors (see below), whose sum is σ = 106563864. Its totient is φ = 13332480.

The previous prime is 39998969. The next prime is 39999013. The reversal of 39998976 is 67989993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11485 + ... + 14556.

Almost surely, 2^39998976 is an apocalyptic number.

It is an amenable number.

39998976 is an abundant number, since it is smaller than the sum of its proper divisors (66564888).

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

39998976 is an equidigital number, since it uses as much as digits as its factorization.

39998976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26062 (or 26046 counting only the distinct ones).

The product of its digits is 6613488, while the sum is 60.

The square root of 39998976 is about 6324.4743655105. The cubic root of 39998976 is about 341.9922709515.

It can be divided in two parts, 399989 and 76, that added together give a triangular number (400065 = T₈₉₄).

The spelling of 39998976 in words is "thirty-nine million, nine hundred ninety-eight thousand, nine hundred seventy-six".