3156318420 has 24 divisors (see below), whose sum is σ = 8837691744. Its totient is φ = 841684896.

The previous prime is 3156318409. The next prime is 3156318449. The reversal of 3156318420 is 248136513.

It is a super-3 number, since 3×3156318420³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26302594 + ... + 26302713.

It is an arithmetic number, because the mean of its divisors is an integer number (368237156).

Almost surely, 2^3156318420 is an apocalyptic number.

3156318420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3156318420 is an abundant number, since it is smaller than the sum of its proper divisors (5681373324).

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

3156318420 is a wasteful number, since it uses less digits than its factorization.

3156318420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52605319 (or 52605317 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 3156318420 is about 56181.1215623184. The cubic root of 3156318420 is about 1466.8766764244.

The spelling of 3156318420 in words is "three billion, one hundred fifty-six million, three hundred eighteen thousand, four hundred twenty".