257714444 has 24 divisors (see below), whose sum is σ = 488228160. Its totient is φ = 118324224.

The previous prime is 257714393. The next prime is 257714449. The reversal of 257714444 is 444417752.

It is a happy number.

257714444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 257714398 and 257714407.

It is not an unprimeable number, because it can be changed into a prime (257714449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2804 + ... + 22875.

It is an arithmetic number, because the mean of its divisors is an integer number (20342840).

Almost surely, 2^257714444 is an apocalyptic number.

It is an amenable number.

257714444 is a deficient number, since it is larger than the sum of its proper divisors (230513716).

257714444 is a wasteful number, since it uses less digits than its factorization.

257714444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25889 (or 25887 counting only the distinct ones).

The product of its digits is 125440, while the sum is 38.

The square root of 257714444 is about 16053.4869732404. The cubic root of 257714444 is about 636.3747214915.

The spelling of 257714444 in words is "two hundred fifty-seven million, seven hundred fourteen thousand, four hundred forty-four".