3456320256 has 54 divisors (see below), whose sum is σ = 9965430020. Its totient is φ = 1152105984.

The previous prime is 3456320237. The next prime is 3456320291. The reversal of 3456320256 is 6520236543.

3456320256 is a `hidden beast` number, since 34 + 56 + 320 + 256 = 666.

It is a super-2 number, since 2×3456320256² = 23892299424071811072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 3456320256.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 747766 + ... + 752373.

Almost surely, 2^3456320256 is an apocalyptic number.

3456320256 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3456320256 is an abundant number, since it is smaller than the sum of its proper divisors (6509109764).

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

3456320256 is a wasteful number, since it uses less digits than its factorization.

3456320256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500161 (or 1500144 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

The square root of 3456320256 is about 58790.4775962911. The cubic root of 3456320256 is about 1511.9519595050.

Adding to 3456320256 its reverse (6520236543), we get a palindrome (9976556799).

The spelling of 3456320256 in words is "three billion, four hundred fifty-six million, three hundred twenty thousand, two hundred fifty-six".