39868190 has 16 divisors (see below), whose sum is σ = 73117728. Its totient is φ = 15646176.

The previous prime is 39868189. The next prime is 39868193. The reversal of 39868190 is 9186893.

It is a super-2 number, since 2×39868190² = 3178945147752200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39868193) 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, 37082 + ... + 38141.

It is an arithmetic number, because the mean of its divisors is an integer number (4569858).

Almost surely, 2^39868190 is an apocalyptic number.

39868190 is a deficient number, since it is larger than the sum of its proper divisors (33249538).

39868190 is a wasteful number, since it uses less digits than its factorization.

39868190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75283.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 39868190 is about 6314.1262261694. The cubic root of 39868190 is about 341.6191227386.

The spelling of 39868190 in words is "thirty-nine million, eight hundred sixty-eight thousand, one hundred ninety".