11453988 has 96 divisors (see below), whose sum is σ = 34884864. Its totient is φ = 2838528.

The previous prime is 11453983. The next prime is 11454011. The reversal of 11453988 is 88935411.

It is a super-2 number, since 2×11453988² = 262387682208288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (11453983) 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 31 ways as a sum of consecutive naturals, for example, 18256 + ... + 18872.

It is an arithmetic number, because the mean of its divisors is an integer number (363384).

Almost surely, 2^11453988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11453988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17442432).

11453988 is an abundant number, since it is smaller than the sum of its proper divisors (23430876).

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

11453988 is a wasteful number, since it uses less digits than its factorization.

11453988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661 (or 659 counting only the distinct ones).

The product of its digits is 34560, while the sum is 39.

The square root of 11453988 is about 3384.3740927977. The cubic root of 11453988 is about 225.4164337204.

The spelling of 11453988 in words is "eleven million, four hundred fifty-three thousand, nine hundred eighty-eight".