11297388 has 12 divisors (see below), whose sum is σ = 26360600. Its totient is φ = 3765792.

The previous prime is 11297387. The next prime is 11297399. The reversal of 11297388 is 88379211.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (11297387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470713 + ... + 470736.

Almost surely, 2^11297388 is an apocalyptic number.

It is an amenable number.

11297388 is an abundant number, since it is smaller than the sum of its proper divisors (15063212).

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

11297388 is a wasteful number, since it uses less digits than its factorization.

11297388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941456 (or 941454 counting only the distinct ones).

The product of its digits is 24192, while the sum is 39.

The square root of 11297388 is about 3361.1587287720. The cubic root of 11297388 is about 224.3844111425.

The spelling of 11297388 in words is "eleven million, two hundred ninety-seven thousand, three hundred eighty-eight".