38979100 has 18 divisors (see below), whose sum is σ = 84584864. Its totient is φ = 15591600.

The previous prime is 38979097. The next prime is 38979131. The reversal of 38979100 is 197983.

It is a self number, because there is not a number n which added to its sum of digits gives 38979100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 194796 + ... + 194995.

Almost surely, 2^38979100 is an apocalyptic number.

It is an amenable number.

38979100 is an abundant number, since it is smaller than the sum of its proper divisors (45605764).

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

38979100 is a wasteful number, since it uses less digits than its factorization.

38979100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 389805 (or 389798 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 38979100 is about 6243.3244349465. The cubic root of 38979100 is about 339.0605554264.

The spelling of 38979100 in words is "thirty-eight million, nine hundred seventy-nine thousand, one hundred".