13220034240 has 224 divisors, whose sum is σ = 48318359040. Its totient is φ = 2999771136.

The previous prime is 13220034239. The next prime is 13220034257. The reversal of 13220034240 is 4243002231.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 927004 + ... + 941156.

It is an arithmetic number, because the mean of its divisors is an integer number (215706960).

Almost surely, 2^13220034240 is an apocalyptic number.

13220034240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13220034240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24159179520).

13220034240 is an abundant number, since it is smaller than the sum of its proper divisors (35098324800).

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

13220034240 is a wasteful number, since it uses less digits than its factorization.

13220034240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14319 (or 14309 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 13220034240 its reverse (4243002231), we get a palindrome (17463036471).

The spelling of 13220034240 in words is "thirteen billion, two hundred twenty million, thirty-four thousand, two hundred forty".