2257426 has 4 divisors (see below), whose sum is σ = 3386142. Its totient is φ = 1128712.

The previous prime is 2257403. The next prime is 2257439. The reversal of 2257426 is 6247522.

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., 1687401 + 570025 = 1299^2 + 755^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2257394 and 2257403.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564355 + ... + 564358.

2^2257426 is an apocalyptic number.

2257426 is a deficient number, since it is larger than the sum of its proper divisors (1128716).

2257426 is a wasteful number, since it uses less digits than its factorization.

2257426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128715.

The product of its digits is 6720, while the sum is 28.

The square root of 2257426 is about 1502.4732942718. The cubic root of 2257426 is about 131.1810715926.

The spelling of 2257426 in words is "two million, two hundred fifty-seven thousand, four hundred twenty-six".