38680392 has 64 divisors (see below), whose sum is σ = 101724480. Its totient is φ = 12241152.

The previous prime is 38680391. The next prime is 38680441. The reversal of 38680392 is 29308683.

It is a self number, because there is not a number n which added to its sum of digits gives 38680392.

It is not an unprimeable number, because it can be changed into a prime (38680391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37678 + ... + 38690.

It is an arithmetic number, because the mean of its divisors is an integer number (1589445).

Almost surely, 2^38680392 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38680392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50862240).

38680392 is an abundant number, since it is smaller than the sum of its proper divisors (63044088).

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

38680392 is a wasteful number, since it uses less digits than its factorization.

38680392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102 (or 1098 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 38680392 is about 6219.3562367821. The cubic root of 38680392 is about 338.1922275252.

The spelling of 38680392 in words is "thirty-eight million, six hundred eighty thousand, three hundred ninety-two".