13443330 has 16 divisors (see below), whose sum is σ = 32264064. Its totient is φ = 3584880.

The previous prime is 13443329. The next prime is 13443337. The reversal of 13443330 is 3334431.

It is a junction number, because it is equal to n+sod(n) for n = 13443297 and 13443306.

It is not an unprimeable number, because it can be changed into a prime (13443337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224026 + ... + 224085.

It is an arithmetic number, because the mean of its divisors is an integer number (2016504).

Almost surely, 2^13443330 is an apocalyptic number.

13443330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13443330 is an abundant number, since it is smaller than the sum of its proper divisors (18820734).

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

13443330 is a wasteful number, since it uses less digits than its factorization.

13443330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448121.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 13443330 is about 3666.5146938203. The cubic root of 13443330 is about 237.7765126597.

Adding to 13443330 its reverse (3334431), we get a palindrome (16777761).

The spelling of 13443330 in words is "thirteen million, four hundred forty-three thousand, three hundred thirty".