13334440 has 32 divisors (see below), whose sum is σ = 34289280. Its totient is φ = 4571712.

The previous prime is 13334437. The next prime is 13334459. The reversal of 13334440 is 4443331.

It is a super-2 number, since 2×13334440² = 355614580227200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23532 + ... + 24091.

It is an arithmetic number, because the mean of its divisors is an integer number (1071540).

Almost surely, 2^13334440 is an apocalyptic number.

13334440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13334440 is an abundant number, since it is smaller than the sum of its proper divisors (20954840).

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

13334440 is a wasteful number, since it uses less digits than its factorization.

13334440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47641 (or 47637 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 13334440 is about 3651.6352501311. The cubic root of 13334440 is about 237.1327806099.

Adding to 13334440 its reverse (4443331), we get a palindrome (17777771).

It can be divided in two parts, 1333 and 4440, that multiplied together give a triangular number (5918520 = T₃₄₄₀).

The spelling of 13334440 in words is "thirteen million, three hundred thirty-four thousand, four hundred forty".