13242244440 has 64 divisors (see below), whose sum is σ = 40112467200. Its totient is φ = 3496977792.

The previous prime is 13242244423. The next prime is 13242244441. The reversal of 13242244440 is 4444224231.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 13242244398 and 13242244407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13242244441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 523330 + ... + 548049.

It is an arithmetic number, because the mean of its divisors is an integer number (626757300).

Almost surely, 2^13242244440 is an apocalyptic number.

13242244440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13242244440 is an abundant number, since it is smaller than the sum of its proper divisors (26870222760).

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

13242244440 is a wasteful number, since it uses less digits than its factorization.

13242244440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071496 (or 1071492 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 30.

Adding to 13242244440 its reverse (4444224231), we get a palindrome (17686468671).

The spelling of 13242244440 in words is "thirteen billion, two hundred forty-two million, two hundred forty-four thousand, four hundred forty".