256015360 has 88 divisors (see below), whose sum is σ = 634340736. Its totient is φ = 99041280.

The previous prime is 256015349. The next prime is 256015381. The reversal of 256015360 is 63510652.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157914 + ... + 159526.

Almost surely, 2^256015360 is an apocalyptic number.

256015360 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 256015360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317170368).

256015360 is an abundant number, since it is smaller than the sum of its proper divisors (378325376).

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

256015360 is a wasteful number, since it uses less digits than its factorization.

256015360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669 (or 1651 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 256015360 is about 16000.4799928002. The cubic root of 256015360 is about 634.9731197417.

The spelling of 256015360 in words is "two hundred fifty-six million, fifteen thousand, three hundred sixty".