38672644 has 12 divisors (see below), whose sum is σ = 67790800. Its totient is φ = 19303848.

The previous prime is 38672629. The next prime is 38672651. The reversal of 38672644 is 44627683.

It is a happy number.

It is a super-3 number, since 3×38672644³ (a number of 24 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 38672597 and 38672606.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5334 + ... + 10285.

Almost surely, 2^38672644 is an apocalyptic number.

It is an amenable number.

38672644 is a deficient number, since it is larger than the sum of its proper divisors (29118156).

38672644 is a wasteful number, since it uses less digits than its factorization.

38672644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16242 (or 16240 counting only the distinct ones).

The product of its digits is 193536, while the sum is 40.

The square root of 38672644 is about 6218.7333115354. The cubic root of 38672644 is about 338.1696451243.

The spelling of 38672644 in words is "thirty-eight million, six hundred seventy-two thousand, six hundred forty-four".