11661432 has 16 divisors (see below), whose sum is σ = 29153640. Its totient is φ = 3887136.

The previous prime is 11661407. The next prime is 11661449. The reversal of 11661432 is 23416611.

11661432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 485893 = 11661432 / (1 + 1 + 6 + 6 + 1 + 4 + 3 + 2).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242923 + ... + 242970.

Almost surely, 2^11661432 is an apocalyptic number.

11661432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11661432 is an abundant number, since it is smaller than the sum of its proper divisors (17492208).

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

11661432 is a wasteful number, since it uses less digits than its factorization.

11661432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485902 (or 485898 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 11661432 is about 3414.8838926089. The cubic root of 11661432 is about 226.7691443580.

The spelling of 11661432 in words is "eleven million, six hundred sixty-one thousand, four hundred thirty-two".