13023432 has 48 divisors (see below), whose sum is σ = 35453340. Its totient is φ = 4318848.

The previous prime is 13023427. The next prime is 13023433. The reversal of 13023432 is 23432031.

It can be written as a sum of positive squares in 2 ways, for example, as 11737476 + 1285956 = 3426^2 + 1134^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (13023433) 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 11 ways as a sum of consecutive naturals, for example, 19618 + ... + 20270.

Almost surely, 2^13023432 is an apocalyptic number.

13023432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13023432 is an abundant number, since it is smaller than the sum of its proper divisors (22429908).

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

13023432 is a wasteful number, since it uses less digits than its factorization.

13023432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 13023432 is about 3608.7992462868. The cubic root of 13023432 is about 235.2746569885.

Adding to 13023432 its reverse (23432031), we get a palindrome (36455463).

The spelling of 13023432 in words is "thirteen million, twenty-three thousand, four hundred thirty-two".