38399004 has 36 divisors (see below), whose sum is σ = 110931184. Its totient is φ = 10971072.

The previous prime is 38399003. The next prime is 38399027. The reversal of 38399004 is 40099383.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 38399004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38399003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75937 + ... + 76440.

Almost surely, 2^38399004 is an apocalyptic number.

It is an amenable number.

38399004 is an abundant number, since it is smaller than the sum of its proper divisors (72532180).

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

38399004 is a wasteful number, since it uses less digits than its factorization.

38399004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152394 (or 152389 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 38399004 is about 6196.6929890063. The cubic root of 38399004 is about 337.3701492242.

The spelling of 38399004 in words is "thirty-eight million, three hundred ninety-nine thousand, four".