38979842 has 16 divisors (see below), whose sum is σ = 63960192. Its totient is φ = 17669520.

The previous prime is 38979823. The next prime is 38979847. The reversal of 38979842 is 24897983.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (38979847) 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, 6503 + ... + 10965.

It is an arithmetic number, because the mean of its divisors is an integer number (3997512).

Almost surely, 2^38979842 is an apocalyptic number.

38979842 is a deficient number, since it is larger than the sum of its proper divisors (24980350).

38979842 is a wasteful number, since it uses less digits than its factorization.

38979842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4873.

The product of its digits is 870912, while the sum is 50.

The square root of 38979842 is about 6243.3838581333. The cubic root of 38979842 is about 339.0627068472.

The spelling of 38979842 in words is "thirty-eight million, nine hundred seventy-nine thousand, eight hundred forty-two".