13024221440 has 36 divisors (see below), whose sum is σ = 31197083484. Its totient is φ = 5209688064.

The previous prime is 13024221439. The next prime is 13024221449. The reversal of 13024221440 is 4412242031.

It can be written as a sum of positive squares in 2 ways, for example, as 1363677184 + 11660544256 = 36928^2 + 107984^2 .

It is not an unprimeable number, because it can be changed into a prime (13024221449) 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, 5086307 + ... + 5088866.

Almost surely, 2^13024221440 is an apocalyptic number.

13024221440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13024221440 is an abundant number, since it is smaller than the sum of its proper divisors (18172862044).

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

13024221440 is an equidigital number, since it uses as much as digits as its factorization.

13024221440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10175194 (or 10175180 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 13024221440 its reverse (4412242031), we get a palindrome (17436463471).

The spelling of 13024221440 in words is "thirteen billion, twenty-four million, two hundred twenty-one thousand, four hundred forty".