2257407808 has 28 divisors (see below), whose sum is σ = 4583724640. Its totient is φ = 1102453632.

The previous prime is 2257407797. The next prime is 2257407809. The reversal of 2257407808 is 8087047522.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257407809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407388 + ... + 412891.

Almost surely, 2^2257407808 is an apocalyptic number.

It is an amenable number.

2257407808 is an abundant number, since it is smaller than the sum of its proper divisors (2326316832).

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

2257407808 is an equidigital number, since it uses as much as digits as its factorization.

2257407808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820334 (or 820324 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 43.

The square root of 2257407808 is about 47512.1858895168. The cubic root of 2257407808 is about 1311.8071920714.

The spelling of 2257407808 in words is "two billion, two hundred fifty-seven million, four hundred seven thousand, eight hundred eight".