1240894256 has 40 divisors (see below), whose sum is σ = 2892314880. Its totient is φ = 503820864.

The previous prime is 1240894241. The next prime is 1240894261. The reversal of 1240894256 is 6524980421.

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, 289436 + ... + 293691.

It is an arithmetic number, because the mean of its divisors is an integer number (72307872).

Almost surely, 2^1240894256 is an apocalyptic number.

1240894256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1240894256 is an abundant number, since it is smaller than the sum of its proper divisors (1651420624).

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

1240894256 is a wasteful number, since it uses less digits than its factorization.

1240894256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583161 (or 583155 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 1240894256 is about 35226.3290168022. The cubic root of 1240894256 is about 1074.5952703203.

The spelling of 1240894256 in words is "one billion, two hundred forty million, eight hundred ninety-four thousand, two hundred fifty-six".