38678738 has 16 divisors (see below), whose sum is σ = 67660800. Its totient is φ = 16576308.

The previous prime is 38678729. The next prime is 38678749. The reversal of 38678738 is 83787683.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 27506 + ... + 28877.

It is an arithmetic number, because the mean of its divisors is an integer number (4228800).

Almost surely, 2^38678738 is an apocalyptic number.

38678738 is a deficient number, since it is larger than the sum of its proper divisors (28982062).

38678738 is an equidigital number, since it uses as much as digits as its factorization.

38678738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56406 (or 56392 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 50.

The square root of 38678738 is about 6219.2232633987. The cubic root of 38678738 is about 338.1874070129.

The spelling of 38678738 in words is "thirty-eight million, six hundred seventy-eight thousand, seven hundred thirty-eight".