13234440 has 64 divisors (see below), whose sum is σ = 41083200. Its totient is φ = 3406592.

The previous prime is 13234439. The next prime is 13234451. The reversal of 13234440 is 4443231.

It is a super-2 number, since 2×13234440² = 350300804227200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1579 + ... + 5381.

It is an arithmetic number, because the mean of its divisors is an integer number (641925).

Almost surely, 2^13234440 is an apocalyptic number.

13234440 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 13234440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20541600).

13234440 is an abundant number, since it is smaller than the sum of its proper divisors (27848760).

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

13234440 is a wasteful number, since it uses less digits than its factorization.

13234440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3846 (or 3842 counting only the distinct ones).

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

The square root of 13234440 is about 3637.9169864086. The cubic root of 13234440 is about 236.5385098207.

Adding to 13234440 its reverse (4443231), we get a palindrome (17677671).

The spelling of 13234440 in words is "thirteen million, two hundred thirty-four thousand, four hundred forty".