39998000024 has 48 divisors (see below), whose sum is σ = 79438500000. Its totient is φ = 18877644864.

The previous prime is 39997999957. The next prime is 39998000041. The reversal of 39998000024 is 42000089993.

It is a Cunningham number, because it is equal to 199995²-1.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 774977 + ... + 824975.

It is an arithmetic number, because the mean of its divisors is an integer number (1654968750).

Almost surely, 2^39998000024 is an apocalyptic number.

It is an amenable number.

39998000024 is a deficient number, since it is larger than the sum of its proper divisors (39440499976).

39998000024 is a wasteful number, since it uses less digits than its factorization.

39998000024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50320 (or 50297 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The spelling of 39998000024 in words is "thirty-nine billion, nine hundred ninety-eight million, twenty-four", and thus it is an aban number.