12260988 has 18 divisors (see below), whose sum is σ = 30993144. Its totient is φ = 4086984.

The previous prime is 12260981. The next prime is 12260993. The reversal of 12260988 is 88906221.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×12260988² = 300663653472288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 340583 = 12260988 / (1 + 2 + 2 + 6 + 0 + 9 + 8 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12260981) 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, 170256 + ... + 170327.

Almost surely, 2^12260988 is an apocalyptic number.

12260988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12260988 is an abundant number, since it is smaller than the sum of its proper divisors (18732156).

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

12260988 is a wasteful number, since it uses less digits than its factorization.

12260988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340593 (or 340588 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 12260988 is about 3501.5693624431. The cubic root of 12260988 is about 230.5907184596.

The spelling of 12260988 in words is "twelve million, two hundred sixty thousand, nine hundred eighty-eight".