39800538 has 16 divisors (see below), whose sum is σ = 88445760. Its totient is φ = 13266828.

The previous prime is 39800531. The next prime is 39800543. The reversal of 39800538 is 83500893.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (39800531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 368470 + ... + 368577.

It is an arithmetic number, because the mean of its divisors is an integer number (5527860).

Almost surely, 2^39800538 is an apocalyptic number.

39800538 is an abundant number, since it is smaller than the sum of its proper divisors (48645222).

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

39800538 is a wasteful number, since it uses less digits than its factorization.

39800538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737058 (or 737052 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 39800538 is about 6308.7667574574. The cubic root of 39800538 is about 341.4257831226.

The spelling of 39800538 in words is "thirty-nine million, eight hundred thousand, five hundred thirty-eight".