2257898 has 4 divisors (see below), whose sum is σ = 3386850. Its totient is φ = 1128948.

The previous prime is 2257883. The next prime is 2257909. The reversal of 2257898 is 8987522.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2111209 + 146689 = 1453^2 + 383^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564473 + ... + 564476.

2^2257898 is an apocalyptic number.

2257898 is a deficient number, since it is larger than the sum of its proper divisors (1128952).

2257898 is a wasteful number, since it uses less digits than its factorization.

2257898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128951.

The product of its digits is 80640, while the sum is 41.

The square root of 2257898 is about 1502.6303604014. The cubic root of 2257898 is about 131.1902137381.

The spelling of 2257898 in words is "two million, two hundred fifty-seven thousand, eight hundred ninety-eight".