38505320 has 32 divisors (see below), whose sum is σ = 99014400. Its totient is φ = 13201728.

The previous prime is 38505319. The next prime is 38505331. The reversal of 38505320 is 2350583.

It is a super-3 number, since 3×38505320³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 38505320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68480 + ... + 69039.

It is an arithmetic number, because the mean of its divisors is an integer number (3094200).

Almost surely, 2^38505320 is an apocalyptic number.

It is an amenable number.

38505320 is an abundant number, since it is smaller than the sum of its proper divisors (60509080).

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

38505320 is a wasteful number, since it uses less digits than its factorization.

38505320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137537 (or 137533 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 38505320 is about 6205.2655060038. The cubic root of 38505320 is about 337.6812232038.

The spelling of 38505320 in words is "thirty-eight million, five hundred five thousand, three hundred twenty".