1256230632 has 16 divisors (see below), whose sum is σ = 3140576640. Its totient is φ = 418743536.

The previous prime is 1256230601. The next prime is 1256230663. The reversal of 1256230632 is 2360326521.

It is an interprime number because it is at equal distance from previous prime (1256230601) and next prime (1256230663).

It is a self number, because there is not a number n which added to its sum of digits gives 1256230632.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26171448 + ... + 26171495.

It is an arithmetic number, because the mean of its divisors is an integer number (196286040).

Almost surely, 2^1256230632 is an apocalyptic number.

1256230632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1256230632 is an abundant number, since it is smaller than the sum of its proper divisors (1884346008).

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

1256230632 is a wasteful number, since it uses less digits than its factorization.

1256230632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52342952 (or 52342948 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 1256230632 is about 35443.3439731637. The cubic root of 1256230632 is about 1079.0041780993.

The spelling of 1256230632 in words is "one billion, two hundred fifty-six million, two hundred thirty thousand, six hundred thirty-two".