256074460 has 48 divisors (see below), whose sum is σ = 553867776. Its totient is φ = 99392832.

The previous prime is 256074443. The next prime is 256074461. The reversal of 256074460 is 64470652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256074461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142729 + ... + 144511.

It is an arithmetic number, because the mean of its divisors is an integer number (11538912).

Almost surely, 2^256074460 is an apocalyptic number.

256074460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 256074460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276933888).

256074460 is an abundant number, since it is smaller than the sum of its proper divisors (297793316).

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

256074460 is a wasteful number, since it uses less digits than its factorization.

256074460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002 (or 2000 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 256074460 is about 16002.3267058262. The cubic root of 256074460 is about 635.0219762167.

The spelling of 256074460 in words is "two hundred fifty-six million, seventy-four thousand, four hundred sixty".