12890450 has 24 divisors (see below), whose sum is σ = 24218688. Its totient is φ = 5104080.

The previous prime is 12890447. The next prime is 12890461. The reversal of 12890450 is 5409821.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3899 + ... + 6401.

It is an arithmetic number, because the mean of its divisors is an integer number (1009112).

Almost surely, 2^12890450 is an apocalyptic number.

12890450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12890450 is a deficient number, since it is larger than the sum of its proper divisors (11328238).

12890450 is a wasteful number, since it uses less digits than its factorization.

12890450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2618 (or 2613 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 12890450 is about 3590.3272831317. The cubic root of 12890450 is about 234.4711208702.

The spelling of 12890450 in words is "twelve million, eight hundred ninety thousand, four hundred fifty".