11299988 has 18 divisors (see below), whose sum is σ = 23003946. Its totient is φ = 4842768.

The previous prime is 11299979. The next prime is 11299993. The reversal of 11299988 is 88999211.

It can be written as a sum of positive squares in only one way, i.e., 10640644 + 659344 = 3262^2 + 812^2 .

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 28631 + ... + 29022.

It is an arithmetic number, because the mean of its divisors is an integer number (1277997).

Almost surely, 2^11299988 is an apocalyptic number.

It is an amenable number.

11299988 is an abundant number, since it is smaller than the sum of its proper divisors (11703958).

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

11299988 is a wasteful number, since it uses less digits than its factorization.

11299988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57671 (or 57662 counting only the distinct ones).

The product of its digits is 93312, while the sum is 47.

The square root of 11299988 is about 3361.5454779015. The cubic root of 11299988 is about 224.4016232249.

The spelling of 11299988 in words is "eleven million, two hundred ninety-nine thousand, nine hundred eighty-eight".