2256446 has 4 divisors (see below), whose sum is σ = 3384672. Its totient is φ = 1128222.

The previous prime is 2256437. The next prime is 2256467. The reversal of 2256446 is 6446522.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6446522 = 2 ⋅3223261.

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, 564110 + ... + 564113.

It is an arithmetic number, because the mean of its divisors is an integer number (846168).

2^2256446 is an apocalyptic number.

2256446 is a deficient number, since it is larger than the sum of its proper divisors (1128226).

2256446 is a wasteful number, since it uses less digits than its factorization.

2256446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128225.

The product of its digits is 11520, while the sum is 29.

The square root of 2256446 is about 1502.1471299443. The cubic root of 2256446 is about 131.1620859488.

The spelling of 2256446 in words is "two million, two hundred fifty-six thousand, four hundred forty-six".