3215428456 has 16 divisors (see below), whose sum is σ = 6087463200. Its totient is φ = 1592104944.

The previous prime is 3215428453. The next prime is 3215428457. The reversal of 3215428456 is 6548245123.

It is not an unprimeable number, because it can be changed into a prime (3215428453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1950286 + ... + 1951933.

It is an arithmetic number, because the mean of its divisors is an integer number (380466450).

Almost surely, 2^3215428456 is an apocalyptic number.

It is an amenable number.

3215428456 is a deficient number, since it is larger than the sum of its proper divisors (2872034744).

3215428456 is a wasteful number, since it uses less digits than its factorization.

3215428456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3902328 (or 3902324 counting only the distinct ones).

The product of its digits is 230400, while the sum is 40.

The square root of 3215428456 is about 56704.7480904377. The cubic root of 3215428456 is about 1475.9770917144.

The spelling of 3215428456 in words is "three billion, two hundred fifteen million, four hundred twenty-eight thousand, four hundred fifty-six".