2456890 has 32 divisors (see below), whose sum is σ = 4749120. Its totient is φ = 912384.

The previous prime is 2456879. The next prime is 2456917. The reversal of 2456890 is 986542.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12634 + ... + 12826.

It is an arithmetic number, because the mean of its divisors is an integer number (148410).

2^2456890 is an apocalyptic number.

2456890 is a deficient number, since it is larger than the sum of its proper divisors (2292230).

2456890 is a wasteful number, since it uses less digits than its factorization.

2456890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 2456890 is about 1567.4469687999. The cubic root of 2456890 is about 134.9362295978.

The spelling of 2456890 in words is "two million, four hundred fifty-six thousand, eight hundred ninety".