12890458 has 16 divisors (see below), whose sum is σ = 22224384. Its totient is φ = 5492880.

The previous prime is 12890447. The next prime is 12890461. The reversal of 12890458 is 85409821.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10 + ... + 5077.

It is an arithmetic number, because the mean of its divisors is an integer number (1389024).

Almost surely, 2^12890458 is an apocalyptic number.

12890458 is a deficient number, since it is larger than the sum of its proper divisors (9333926).

12890458 is a wasteful number, since it uses less digits than its factorization.

12890458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5277.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 12890458 is about 3590.3283972361. The cubic root of 12890458 is about 234.4711693756.

The spelling of 12890458 in words is "twelve million, eight hundred ninety thousand, four hundred fifty-eight".