742847256 has 48 divisors (see below), whose sum is σ = 2117770200. Its totient is φ = 234582912.

The previous prime is 742847251. The next prime is 742847263. The reversal of 742847256 is 652748247.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742847251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 270141 + ... + 272876.

Almost surely, 2^742847256 is an apocalyptic number.

742847256 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

742847256 is an abundant number, since it is smaller than the sum of its proper divisors (1374922944).

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

742847256 is a wasteful number, since it uses less digits than its factorization.

742847256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543048 (or 543041 counting only the distinct ones).

The product of its digits is 752640, while the sum is 45.

The square root of 742847256 is about 27255.2243799239. The cubic root of 742847256 is about 905.6627547640.

Subtracting from 742847256 its reverse (652748247), we obtain a palindrome (90099009).

The spelling of 742847256 in words is "seven hundred forty-two million, eight hundred forty-seven thousand, two hundred fifty-six".