12262788 has 18 divisors (see below), whose sum is σ = 30997694. Its totient is φ = 4087584.

The previous prime is 12262787. The next prime is 12262793. The reversal of 12262788 is 88726221.

It is a happy number.

12262788 is a `hidden beast` number, since 1 + 22 + 627 + 8 + 8 = 666.

12262788 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7387524 + 4875264 = 2718^2 + 2208^2 .

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

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: 340633 = 12262788 / (1 + 2 + 2 + 6 + 2 + 7 + 8 + 8).

It is not an unprimeable number, because it can be changed into a prime (12262787) 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, 170281 + ... + 170352.

Almost surely, 2^12262788 is an apocalyptic number.

12262788 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12262788 is an abundant number, since it is smaller than the sum of its proper divisors (18734906).

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

12262788 is a wasteful number, since it uses less digits than its factorization.

12262788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340643 (or 340638 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 12262788 is about 3501.8263806191. The cubic root of 12262788 is about 230.6020020251.

The spelling of 12262788 in words is "twelve million, two hundred sixty-two thousand, seven hundred eighty-eight".