3138947604 has 36 divisors (see below), whose sum is σ = 8544914196. Its totient is φ = 965829888.

The previous prime is 3138947599. The next prime is 3138947653. The reversal of 3138947604 is 4067498313.

3138947604 is a `hidden beast` number, since 3 + 1 + 38 + 9 + 4 + 7 + 604 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2062976400 + 1075971204 = 45420^2 + 32802^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 3138947604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3353109 + ... + 3354044.

Almost surely, 2^3138947604 is an apocalyptic number.

It is an amenable number.

3138947604 is an abundant number, since it is smaller than the sum of its proper divisors (5405966592).

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

3138947604 is a wasteful number, since it uses less digits than its factorization.

3138947604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6707176 (or 6707171 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 3138947604 is about 56026.3117115521. The cubic root of 3138947604 is about 1464.1807366670.

The spelling of 3138947604 in words is "three billion, one hundred thirty-eight million, nine hundred forty-seven thousand, six hundred four".