38678540 has 12 divisors (see below), whose sum is σ = 81224976. Its totient is φ = 15471408.

The previous prime is 38678537. The next prime is 38678561. The reversal of 38678540 is 4587683.

It is a happy number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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, 966944 + ... + 966983.

It is an arithmetic number, because the mean of its divisors is an integer number (6768748).

Almost surely, 2^38678540 is an apocalyptic number.

It is an amenable number.

38678540 is an abundant number, since it is smaller than the sum of its proper divisors (42546436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

38678540 is a wasteful number, since it uses less digits than its factorization.

38678540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933936 (or 1933934 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 38678540 is about 6219.2073449918. The cubic root of 38678540 is about 338.1868299411.

The spelling of 38678540 in words is "thirty-eight million, six hundred seventy-eight thousand, five hundred forty".