13443390 has 24 divisors (see below), whose sum is σ = 34953048. Its totient is φ = 3584880.

The previous prime is 13443389. The next prime is 13443407. The reversal of 13443390 is 9334431.

13443390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×13443390³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

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, 74596 + ... + 74775.

It is an arithmetic number, because the mean of its divisors is an integer number (1456377).

Almost surely, 2^13443390 is an apocalyptic number.

13443390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13443390 is an abundant number, since it is smaller than the sum of its proper divisors (21509658).

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

13443390 is a wasteful number, since it uses less digits than its factorization.

13443390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149384 (or 149381 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 13443390 is about 3666.5228759685. The cubic root of 13443390 is about 237.7768664057.

The spelling of 13443390 in words is "thirteen million, four hundred forty-three thousand, three hundred ninety".