38285920 has 24 divisors (see below), whose sum is σ = 90450864. Its totient is φ = 15314304.

The previous prime is 38285911. The next prime is 38285927. The reversal of 38285920 is 2958283.

It is a self number, because there is not a number n which added to its sum of digits gives 38285920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38285927) 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, 119484 + ... + 119803.

It is an arithmetic number, because the mean of its divisors is an integer number (3768786).

Almost surely, 2^38285920 is an apocalyptic number.

It is an amenable number.

38285920 is an abundant number, since it is smaller than the sum of its proper divisors (52164944).

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

38285920 is a wasteful number, since it uses less digits than its factorization.

38285920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239302 (or 239294 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 38285920 is about 6187.5617168639. The cubic root of 38285920 is about 337.0386416784.

The spelling of 38285920 in words is "thirty-eight million, two hundred eighty-five thousand, nine hundred twenty".