1256701332 has 24 divisors (see below), whose sum is σ = 3003823872. Its totient is φ = 408683200.

The previous prime is 1256701309. The next prime is 1256701367. The reversal of 1256701332 is 2331076521.

It is a self number, because there is not a number n which added to its sum of digits gives 1256701332.

It is a congruent number.

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, 1276644 + ... + 1277627.

It is an arithmetic number, because the mean of its divisors is an integer number (125159328).

Almost surely, 2^1256701332 is an apocalyptic number.

1256701332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1256701332 is an abundant number, since it is smaller than the sum of its proper divisors (1747122540).

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

1256701332 is a wasteful number, since it uses less digits than its factorization.

1256701332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2554319 (or 2554317 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 1256701332 is about 35449.9835260893. The cubic root of 1256701332 is about 1079.1389261392.

Adding to 1256701332 its reverse (2331076521), we get a palindrome (3587777853).

The spelling of 1256701332 in words is "one billion, two hundred fifty-six million, seven hundred one thousand, three hundred thirty-two".