38920056 has 128 divisors (see below), whose sum is σ = 119232000. Its totient is φ = 10340352.

The previous prime is 38920051. The next prime is 38920067. The reversal of 38920056 is 65002983.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 38919999 and 38920026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38920051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 284020 + ... + 284156.

It is an arithmetic number, because the mean of its divisors is an integer number (931500).

Almost surely, 2^38920056 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 38920056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59616000).

38920056 is an abundant number, since it is smaller than the sum of its proper divisors (80311944).

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

38920056 is a wasteful number, since it uses less digits than its factorization.

38920056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 38920056 is about 6238.5940723852. The cubic root of 38920056 is about 338.8892704028.

The spelling of 38920056 in words is "thirty-eight million, nine hundred twenty thousand, fifty-six".