39121018 has 16 divisors (see below), whose sum is σ = 59633280. Its totient is φ = 19245600.

The previous prime is 39121007. The next prime is 39121021. The reversal of 39121018 is 81012193.

39121018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 39120983 and 39121001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47833 + ... + 48643.

It is an arithmetic number, because the mean of its divisors is an integer number (3727080).

Almost surely, 2^39121018 is an apocalyptic number.

39121018 is a deficient number, since it is larger than the sum of its proper divisors (20512262).

39121018 is a wasteful number, since it uses less digits than its factorization.

39121018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 39121018 is about 6254.6796880416. The cubic root of 39121018 is about 339.4715493144.

The spelling of 39121018 in words is "thirty-nine million, one hundred twenty-one thousand, eighteen".