1256242352 has 20 divisors (see below), whose sum is σ = 2499753696. Its totient is φ = 611144640.

The previous prime is 1256242349. The next prime is 1256242373. The reversal of 1256242352 is 2532426521.

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, 1060424 + ... + 1061607.

Almost surely, 2^1256242352 is an apocalyptic number.

It is an amenable number.

1256242352 is a deficient number, since it is larger than the sum of its proper divisors (1243511344).

1256242352 is a wasteful number, since it uses less digits than its factorization.

1256242352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122076 (or 2122070 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 1256242352 is about 35443.5093070650. The cubic root of 1256242352 is about 1079.0075336110.

Adding to 1256242352 its reverse (2532426521), we get a palindrome (3788668873).

The spelling of 1256242352 in words is "one billion, two hundred fifty-six million, two hundred forty-two thousand, three hundred fifty-two".