1256845360 has 40 divisors (see below), whose sum is σ = 3094060896. Its totient is φ = 473164800.

The previous prime is 1256845333. The next prime is 1256845379. The reversal of 1256845360 is 635486521.

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

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 460716 + ... + 463435.

Almost surely, 2^1256845360 is an apocalyptic number.

1256845360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1256845360 is an abundant number, since it is smaller than the sum of its proper divisors (1837215536).

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

1256845360 is a wasteful number, since it uses less digits than its factorization.

1256845360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924181 (or 924175 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 1256845360 is about 35452.0148933738. The cubic root of 1256845360 is about 1079.1801505415.

It can be divided in two parts, 125684 and 5360, that added together give a square (131044 = 362²).

The spelling of 1256845360 in words is "one billion, two hundred fifty-six million, eight hundred forty-five thousand, three hundred sixty".