38243985 has 32 divisors (see below), whose sum is σ = 67444608. Its totient is φ = 18385920.

The previous prime is 38243971. The next prime is 38244013. The reversal of 38243985 is 58934283.

It is not a de Polignac number, because 38243985 - 2⁸ = 38243729 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6105 + ... + 10665.

It is an arithmetic number, because the mean of its divisors is an integer number (2107644).

Almost surely, 2^38243985 is an apocalyptic number.

It is an amenable number.

38243985 is a deficient number, since it is larger than the sum of its proper divisors (29200623).

38243985 is a wasteful number, since it uses less digits than its factorization.

38243985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4625.

The product of its digits is 207360, while the sum is 42.

The square root of 38243985 is about 6184.1721353792. The cubic root of 38243985 is about 336.9155426484.

The spelling of 38243985 in words is "thirty-eight million, two hundred forty-three thousand, nine hundred eighty-five".