38906004 has 24 divisors (see below), whose sum is σ = 91149408. Its totient is φ = 12916000.

The previous prime is 38906003. The next prime is 38906009. The reversal of 38906004 is 40060983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38906003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3447 + ... + 9470.

It is an arithmetic number, because the mean of its divisors is an integer number (3797892).

Almost surely, 2^38906004 is an apocalyptic number.

It is an amenable number.

38906004 is an abundant number, since it is smaller than the sum of its proper divisors (52243404).

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

38906004 is a wasteful number, since it uses less digits than its factorization.

38906004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13175 (or 13173 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 38906004 is about 6237.4677554277. The cubic root of 38906004 is about 338.8484804199.

Adding to 38906004 its reverse (40060983), we get a palindrome (78966987).

The spelling of 38906004 in words is "thirty-eight million, nine hundred six thousand, four".