13290768 has 30 divisors (see below), whose sum is σ = 37196094. Its totient is φ = 4430208.

The previous prime is 13290751. The next prime is 13290779. The reversal of 13290768 is 86709231.

It can be written as a sum of positive squares in only one way, i.e., 8573184 + 4717584 = 2928^2 + 2172^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46005 + ... + 46292.

Almost surely, 2^13290768 is an apocalyptic number.

13290768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13290768 is an abundant number, since it is smaller than the sum of its proper divisors (23905326).

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

13290768 is a wasteful number, since it uses less digits than its factorization.

13290768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92311 (or 92302 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 13290768 is about 3645.6505592281. The cubic root of 13290768 is about 236.8736173899.

Adding to 13290768 its reverse (86709231), we get a palindrome (99999999).

The spelling of 13290768 in words is "thirteen million, two hundred ninety thousand, seven hundred sixty-eight".