138370004 has 24 divisors (see below), whose sum is σ = 256771368. Its totient is φ = 65018880.

The previous prime is 138369997. The next prime is 138370009. The reversal of 138370004 is 400073831.

It can be written as a sum of positive squares in 4 ways, for example, as 57729604 + 80640400 = 7598^2 + 8980^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138370009) 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, 68432 + ... + 70424.

It is an arithmetic number, because the mean of its divisors is an integer number (10698807).

Almost surely, 2^138370004 is an apocalyptic number.

It is an amenable number.

138370004 is a deficient number, since it is larger than the sum of its proper divisors (118401364).

138370004 is a wasteful number, since it uses less digits than its factorization.

138370004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3035 (or 3033 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 138370004 is about 11763.0779985512. The cubic root of 138370004 is about 517.2263611249.

The spelling of 138370004 in words is "one hundred thirty-eight million, three hundred seventy thousand, four".