39998760 has 32 divisors (see below), whose sum is σ = 119996640. Its totient is φ = 10666304.

The previous prime is 39998759. The next prime is 39998797. The reversal of 39998760 is 6789993.

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, 166542 + ... + 166781.

It is an arithmetic number, because the mean of its divisors is an integer number (3749895).

Almost surely, 2^39998760 is an apocalyptic number.

39998760 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39998760 is an abundant number, since it is smaller than the sum of its proper divisors (79997880).

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

39998760 is a wasteful number, since it uses less digits than its factorization.

39998760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333337 (or 333333 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 51.

The square root of 39998760 is about 6324.4572889695. The cubic root of 39998760 is about 341.9916553485.

The spelling of 39998760 in words is "thirty-nine million, nine hundred ninety-eight thousand, seven hundred sixty".