2257442 has 8 divisors (see below), whose sum is σ = 3694032. Its totient is φ = 1026100.

The previous prime is 2257441. The next prime is 2257471. The reversal of 2257442 is 2447522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2257441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51284 + ... + 51327.

It is an arithmetic number, because the mean of its divisors is an integer number (461754).

2^2257442 is an apocalyptic number.

2257442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2257442 is a deficient number, since it is larger than the sum of its proper divisors (1436590).

2257442 is a wasteful number, since it uses less digits than its factorization.

2257442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102624.

The product of its digits is 4480, while the sum is 26.

The square root of 2257442 is about 1502.4786188163. The cubic root of 2257442 is about 131.1813815167.

It can be divided in two parts, 225 and 7442, that added together give a palindrome (7667).

The spelling of 2257442 in words is "two million, two hundred fifty-seven thousand, four hundred forty-two".