38872666 has 16 divisors (see below), whose sum is σ = 68057856. Its totient is φ = 16304976.

The previous prime is 38872657. The next prime is 38872699. The reversal of 38872666 is 66627883.

It is a super-2 number, since 2×38872666² = 3022168323895112, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 28881 + ... + 30196.

It is an arithmetic number, because the mean of its divisors is an integer number (4253616).

Almost surely, 2^38872666 is an apocalyptic number.

38872666 is a deficient number, since it is larger than the sum of its proper divisors (29185190).

38872666 is a wasteful number, since it uses less digits than its factorization.

38872666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59133.

The product of its digits is 580608, while the sum is 46.

The square root of 38872666 is about 6234.7947841128. The cubic root of 38872666 is about 338.7516679520.

The spelling of 38872666 in words is "thirty-eight million, eight hundred seventy-two thousand, six hundred sixty-six".