257848452 has 72 divisors (see below), whose sum is σ = 712438272. Its totient is φ = 78278400.

The previous prime is 257848447. The next prime is 257848453. The reversal of 257848452 is 254848752.

It is a junction number, because it is equal to n+sod(n) for n = 257848398 and 257848407.

It is not an unprimeable number, because it can be changed into a prime (257848453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12177 + ... + 25767.

It is an arithmetic number, because the mean of its divisors is an integer number (9894976).

Almost surely, 2^257848452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 257848452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356219136).

257848452 is an abundant number, since it is smaller than the sum of its proper divisors (454589820).

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

257848452 is a wasteful number, since it uses less digits than its factorization.

257848452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13649 (or 13644 counting only the distinct ones).

The product of its digits is 716800, while the sum is 45.

The square root of 257848452 is about 16057.6602280656. The cubic root of 257848452 is about 636.4850044404.

The spelling of 257848452 in words is "two hundred fifty-seven million, eight hundred forty-eight thousand, four hundred fifty-two".