38809575 has 72 divisors (see below), whose sum is σ = 81515616. Its totient is φ = 17280000.

The previous prime is 38809543. The next prime is 38809637. The reversal of 38809575 is 57590883.

It is not a de Polignac number, because 38809575 - 2⁵ = 38809543 is a prime.

It is a super-2 number, since 2×38809575² = 3012366223361250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 38809575.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 64275 + ... + 64875.

Almost surely, 2^38809575 is an apocalyptic number.

38809575 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

38809575 is an abundant number, since it is smaller than the sum of its proper divisors (42706041).

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

38809575 is a wasteful number, since it uses less digits than its factorization.

38809575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 38809575 is about 6229.7331403520. The cubic root of 38809575 is about 338.5683021358.

The spelling of 38809575 in words is "thirty-eight million, eight hundred nine thousand, five hundred seventy-five".