13001444432 has 10 divisors (see below), whose sum is σ = 25190298618. Its totient is φ = 6500722208.

The previous prime is 13001444389. The next prime is 13001444471. The reversal of 13001444432 is 23444410031.

It can be written as a sum of positive squares in only one way, i.e., 7566216256 + 5435228176 = 86984^2 + 73724^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 406295123 + ... + 406295154.

Almost surely, 2^13001444432 is an apocalyptic number.

It is an amenable number.

13001444432 is a deficient number, since it is larger than the sum of its proper divisors (12188854186).

13001444432 is an equidigital number, since it uses as much as digits as its factorization.

13001444432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812590285 (or 812590279 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 13001444432 its reverse (23444410031), we get a palindrome (36445854463).

The spelling of 13001444432 in words is "thirteen billion, one million, four hundred forty-four thousand, four hundred thirty-two".