12890988 has 60 divisors (see below), whose sum is σ = 36773352. Its totient is φ = 3905280.

The previous prime is 12890963. The next prime is 12890989. The reversal of 12890988 is 88909821.

12890988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12890988² = 332355143232288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12890989) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1756 + ... + 5372.

Almost surely, 2^12890988 is an apocalyptic number.

12890988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12890988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18386676).

12890988 is an abundant number, since it is smaller than the sum of its proper divisors (23882364).

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

12890988 is a wasteful number, since it uses less digits than its factorization.

12890988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3644 (or 3633 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 45.

The square root of 12890988 is about 3590.4022058817. The cubic root of 12890988 is about 234.4743828124.

The spelling of 12890988 in words is "twelve million, eight hundred ninety thousand, nine hundred eighty-eight".