3155394890 has 16 divisors (see below), whose sum is σ = 5683287240. Its totient is φ = 1261363200.

The previous prime is 3155394889. The next prime is 3155394917. The reversal of 3155394890 is 984935513.

It can be written as a sum of positive squares in 4 ways, for example, as 3118440649 + 36954241 = 55843^2 + 6079^2 .

It is a super-2 number, since 2×3155394890² = 19913033823676224200, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 82535 + ... + 114554.

Almost surely, 2^3155394890 is an apocalyptic number.

3155394890 is a deficient number, since it is larger than the sum of its proper divisors (2527892350).

3155394890 is a wasteful number, since it uses less digits than its factorization.

3155394890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198697.

The product of its (nonzero) digits is 583200, while the sum is 47.

The square root of 3155394890 is about 56172.9017409640. The cubic root of 3155394890 is about 1466.7335944550.

The spelling of 3155394890 in words is "three billion, one hundred fifty-five million, three hundred ninety-four thousand, eight hundred ninety".