12890284 has 48 divisors (see below), whose sum is σ = 27457920. Its totient is φ = 5218560.

The previous prime is 12890243. The next prime is 12890287. The reversal of 12890284 is 48209821.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (12890287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13759 + ... + 14665.

It is an arithmetic number, because the mean of its divisors is an integer number (572040).

Almost surely, 2^12890284 is an apocalyptic number.

It is an amenable number.

12890284 is an abundant number, since it is smaller than the sum of its proper divisors (14567636).

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

12890284 is a wasteful number, since it uses less digits than its factorization.

12890284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958 (or 956 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 12890284 is about 3590.3041653877. The cubic root of 12890284 is about 234.4701143790.

The spelling of 12890284 in words is "twelve million, eight hundred ninety thousand, two hundred eighty-four".