38368809 has 40 divisors (see below), whose sum is σ = 61158240. Its totient is φ = 23903424.

The previous prime is 38368801. The next prime is 38368877. The reversal of 38368809 is 90886383.

It is not a de Polignac number, because 38368809 - 2³ = 38368801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38368801) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 164557 + ... + 164789.

It is an arithmetic number, because the mean of its divisors is an integer number (1528956).

Almost surely, 2^38368809 is an apocalyptic number.

It is an amenable number.

38368809 is a deficient number, since it is larger than the sum of its proper divisors (22789431).

38368809 is a wasteful number, since it uses less digits than its factorization.

38368809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 38368809 is about 6194.2561296737. The cubic root of 38368809 is about 337.2816958625.

The spelling of 38368809 in words is "thirty-eight million, three hundred sixty-eight thousand, eight hundred nine".