256054480 has 40 divisors (see below), whose sum is σ = 649449504. Its totient is φ = 93110400.

The previous prime is 256054441. The next prime is 256054481. The reversal of 256054480 is 84450652.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256054481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144606 + ... + 146365.

Almost surely, 2^256054480 is an apocalyptic number.

256054480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256054480 is an abundant number, since it is smaller than the sum of its proper divisors (393395024).

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

256054480 is a wasteful number, since it uses less digits than its factorization.

256054480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290995 (or 290989 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 256054480 is about 16001.7024094313. The cubic root of 256054480 is about 635.0054600973.

The spelling of 256054480 in words is "two hundred fifty-six million, fifty-four thousand, four hundred eighty".