13069440 has 96 divisors (see below), whose sum is σ = 45150300. Its totient is φ = 3483648.

The previous prime is 13069439. The next prime is 13069453. The reversal of 13069440 is 4496031.

It can be written as a sum of positive squares in 2 ways, for example, as 11451456 + 1617984 = 3384^2 + 1272^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4626 + ... + 6894.

Almost surely, 2^13069440 is an apocalyptic number.

13069440 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 13069440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22575150).

13069440 is an abundant number, since it is smaller than the sum of its proper divisors (32080860).

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

13069440 is a wasteful number, since it uses less digits than its factorization.

13069440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294 (or 2279 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 13069440 is about 3615.1680458867. The cubic root of 13069440 is about 235.5513837058.

The spelling of 13069440 in words is "thirteen million, sixty-nine thousand, four hundred forty".