11431472 has 20 divisors (see below), whose sum is σ = 23852640. Its totient is φ = 5275968.

The previous prime is 11431471. The next prime is 11431489. The reversal of 11431472 is 27413411.

It is a happy number.

11431472 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (11431471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27272 + ... + 27687.

It is an arithmetic number, because the mean of its divisors is an integer number (1192632).

Almost surely, 2^11431472 is an apocalyptic number.

It is an amenable number.

11431472 is an abundant number, since it is smaller than the sum of its proper divisors (12421168).

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

11431472 is a wasteful number, since it uses less digits than its factorization.

11431472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54980 (or 54974 counting only the distinct ones).

The product of its digits is 672, while the sum is 23.

The square root of 11431472 is about 3381.0459919972. The cubic root of 11431472 is about 225.2686305909.

Adding to 11431472 its reverse (27413411), we get a palindrome (38844883).

The spelling of 11431472 in words is "eleven million, four hundred thirty-one thousand, four hundred seventy-two".