2256494 has 4 divisors (see below), whose sum is σ = 3384744. Its totient is φ = 1128246.

The previous prime is 2256479. The next prime is 2256533. The reversal of 2256494 is 4946522.

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

It is a d-powerful number, because it can be written as 2¹⁷ + 2²¹ + 5 + 6⁵ + 4⁶ + 9 + 4⁷ .

It is a self number, because there is not a number n which added to its sum of digits gives 2256494.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564122 + ... + 564125.

It is an arithmetic number, because the mean of its divisors is an integer number (846186).

2^2256494 is an apocalyptic number.

2256494 is a deficient number, since it is larger than the sum of its proper divisors (1128250).

2256494 is a wasteful number, since it uses less digits than its factorization.

2256494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128249.

The product of its digits is 17280, while the sum is 32.

The square root of 2256494 is about 1502.1631069894. The cubic root of 2256494 is about 131.1630159859.

The spelling of 2256494 in words is "two million, two hundred fifty-six thousand, four hundred ninety-four".