12890466 has 12 divisors (see below), whose sum is σ = 27929382. Its totient is φ = 4296816.

The previous prime is 12890461. The next prime is 12890473. The reversal of 12890466 is 66409821.

It can be written as a sum of positive squares in only one way, i.e., 12809241 + 81225 = 3579^2 + 285^2 .

It is a super-2 number, since 2×12890466² = 332328227394312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12890466.

It is not an unprimeable number, because it can be changed into a prime (12890461) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 358051 + ... + 358086.

Almost surely, 2^12890466 is an apocalyptic number.

12890466 is an abundant number, since it is smaller than the sum of its proper divisors (15038916).

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

12890466 is a wasteful number, since it uses less digits than its factorization.

12890466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716145 (or 716142 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 12890466 is about 3590.3295113401. The cubic root of 12890466 is about 234.4712178810.

The spelling of 12890466 in words is "twelve million, eight hundred ninety thousand, four hundred sixty-six".