12985458 has 16 divisors (see below), whose sum is σ = 26048736. Its totient is φ = 4315520.

The previous prime is 12985447. The next prime is 12985463. The reversal of 12985458 is 85458921.

It is a happy number.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 948 + ... + 5183.

It is an arithmetic number, because the mean of its divisors is an integer number (1628046).

Almost surely, 2^12985458 is an apocalyptic number.

12985458 is an abundant number, since it is smaller than the sum of its proper divisors (13063278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12985458 is a wasteful number, since it uses less digits than its factorization.

12985458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6489.

The product of its digits is 115200, while the sum is 42.

The square root of 12985458 is about 3603.5340986315. The cubic root of 12985458 is about 235.0457614218.

The spelling of 12985458 in words is "twelve million, nine hundred eighty-five thousand, four hundred fifty-eight".