38501720 has 16 divisors (see below), whose sum is σ = 86628960. Its totient is φ = 15400672.

The previous prime is 38501717. The next prime is 38501767. The reversal of 38501720 is 2710583.

It is a self number, because there is not a number n which added to its sum of digits gives 38501720.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 481232 + ... + 481311.

It is an arithmetic number, because the mean of its divisors is an integer number (5414310).

Almost surely, 2^38501720 is an apocalyptic number.

It is an amenable number.

38501720 is an abundant number, since it is smaller than the sum of its proper divisors (48127240).

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

38501720 is a wasteful number, since it uses less digits than its factorization.

38501720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962554 (or 962550 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 38501720 is about 6204.9754229973. The cubic root of 38501720 is about 337.6706992010.

The spelling of 38501720 in words is "thirty-eight million, five hundred one thousand, seven hundred twenty".