38979616 has 24 divisors (see below), whose sum is σ = 82645164. Its totient is φ = 17990400.

The previous prime is 38979613. The next prime is 38979649. The reversal of 38979616 is 61697983.

It can be written as a sum of positive squares in 2 ways, for example, as 38489616 + 490000 = 6204^2 + 700^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 38979616.

It is not an unprimeable number, because it can be changed into a prime (38979613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46435 + ... + 47266.

Almost surely, 2^38979616 is an apocalyptic number.

It is an amenable number.

38979616 is an abundant number, since it is smaller than the sum of its proper divisors (43665548).

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

38979616 is a wasteful number, since it uses less digits than its factorization.

38979616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93724 (or 93716 counting only the distinct ones).

The product of its digits is 489888, while the sum is 49.

The square root of 38979616 is about 6243.3657589477. The cubic root of 38979616 is about 339.0620515656.

The spelling of 38979616 in words is "thirty-eight million, nine hundred seventy-nine thousand, six hundred sixteen".