2257403478 has 16 divisors (see below), whose sum is σ = 4925244096. Its totient is φ = 684061640.

The previous prime is 2257403459. The next prime is 2257403483. The reversal of 2257403478 is 8743047522.

It is a happy number.

2257403478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17101476 + ... + 17101607.

It is an arithmetic number, because the mean of its divisors is an integer number (307827756).

Almost surely, 2^2257403478 is an apocalyptic number.

2257403478 is an abundant number, since it is smaller than the sum of its proper divisors (2667840618).

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

2257403478 is a wasteful number, since it uses less digits than its factorization.

2257403478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34203099.

The product of its (nonzero) digits is 376320, while the sum is 42.

The square root of 2257403478 is about 47512.1403222376. The cubic root of 2257403478 is about 1311.8063533323.

The spelling of 2257403478 in words is "two billion, two hundred fifty-seven million, four hundred three thousand, four hundred seventy-eight".