256454316 has 48 divisors (see below), whose sum is σ = 703997280. Its totient is φ = 80455680.

The previous prime is 256454287. The next prime is 256454321. The reversal of 256454316 is 613454652.

256454316 is a `hidden beast` number, since 2 + 5 + 645 + 4 + 3 + 1 + 6 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68005 + ... + 71676.

It is an arithmetic number, because the mean of its divisors is an integer number (14666610).

Almost surely, 2^256454316 is an apocalyptic number.

It is an amenable number.

256454316 is an abundant number, since it is smaller than the sum of its proper divisors (447542964).

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

256454316 is a wasteful number, since it uses less digits than its factorization.

256454316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139711 (or 139703 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 256454316 is about 16014.1910816625. The cubic root of 256454316 is about 635.3358142749.

The spelling of 256454316 in words is "two hundred fifty-six million, four hundred fifty-four thousand, three hundred sixteen".