11989452 has 24 divisors (see below), whose sum is σ = 28127232. Its totient is φ = 3974800.

The previous prime is 11989451. The next prime is 11989469. The reversal of 11989452 is 25498911.

It is a self number, because there is not a number n which added to its sum of digits gives 11989452.

It is not an unprimeable number, because it can be changed into a prime (11989451) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 324 + ... + 4907.

It is an arithmetic number, because the mean of its divisors is an integer number (1171968).

Almost surely, 2^11989452 is an apocalyptic number.

11989452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11989452 is an abundant number, since it is smaller than the sum of its proper divisors (16137780).

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

11989452 is a wasteful number, since it uses less digits than its factorization.

11989452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5429 (or 5427 counting only the distinct ones).

The product of its digits is 25920, while the sum is 39.

The square root of 11989452 is about 3462.5788077674. The cubic root of 11989452 is about 228.8757485919.

The spelling of 11989452 in words is "eleven million, nine hundred eighty-nine thousand, four hundred fifty-two".