256402360 has 16 divisors (see below), whose sum is σ = 576905400. Its totient is φ = 102560928.

The previous prime is 256402357. The next prime is 256402361. The reversal of 256402360 is 63204652.

It is a happy number.

256402360 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256402361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3204990 + ... + 3205069.

Almost surely, 2^256402360 is an apocalyptic number.

256402360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

256402360 is an abundant number, since it is smaller than the sum of its proper divisors (320503040).

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

256402360 is a wasteful number, since it uses less digits than its factorization.

256402360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6410070 (or 6410066 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 256402360 is about 16012.5688132791. The cubic root of 256402360 is about 635.2929063897.

The spelling of 256402360 in words is "two hundred fifty-six million, four hundred two thousand, three hundred sixty".