38992086 has 24 divisors (see below), whose sum is σ = 96552144. Its totient is φ = 11140560.

The previous prime is 38992021. The next prime is 38992087. The reversal of 38992086 is 68029983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38992087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154605 + ... + 154856.

It is an arithmetic number, because the mean of its divisors is an integer number (4023006).

Almost surely, 2^38992086 is an apocalyptic number.

38992086 is an abundant number, since it is smaller than the sum of its proper divisors (57560058).

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

38992086 is a wasteful number, since it uses less digits than its factorization.

38992086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309476 (or 309473 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 38992086 is about 6244.3643391461. The cubic root of 38992086 is about 339.0982042476.

The spelling of 38992086 in words is "thirty-eight million, nine hundred ninety-two thousand, eighty-six".