3152820394 has 16 divisors (see below), whose sum is σ = 4877920008. Its totient is φ = 1527213312.

The previous prime is 3152820367. The next prime is 3152820397. The reversal of 3152820394 is 4930282513.

It can be written as a sum of positive squares in 4 ways, for example, as 3067719769 + 85100625 = 55387^2 + 9225^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is not an unprimeable number, because it can be changed into a prime (3152820397) 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, 74187 + ... + 108670.

Almost surely, 2^3152820394 is an apocalyptic number.

3152820394 is a deficient number, since it is larger than the sum of its proper divisors (1725099614).

3152820394 is a wasteful number, since it uses less digits than its factorization.

3152820394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183129.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 3152820394 is about 56149.9812466576. The cubic root of 3152820394 is about 1466.3345818278.

The spelling of 3152820394 in words is "three billion, one hundred fifty-two million, eight hundred twenty thousand, three hundred ninety-four".