13445632 has 20 divisors (see below), whose sum is σ = 26866026. Its totient is φ = 6722560.

The previous prime is 13445629. The next prime is 13445633. The reversal of 13445632 is 23654431.

It can be written as a sum of positive squares in only one way, i.e., 13424896 + 20736 = 3664^2 + 144^2 .

It is a zygodrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 13445632.

It is not an unprimeable number, because it can be changed into a prime (13445633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12619 + ... + 13642.

Almost surely, 2^13445632 is an apocalyptic number.

It is an amenable number.

13445632 is a deficient number, since it is larger than the sum of its proper divisors (13420394).

13445632 is an frugal number, since it uses more digits than its factorization.

13445632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26279 (or 26263 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 13445632 is about 3666.8286024847. The cubic root of 13445632 is about 237.7900839572.

The spelling of 13445632 in words is "thirteen million, four hundred forty-five thousand, six hundred thirty-two".