13394340 has 36 divisors (see below), whose sum is σ = 40630044. Its totient is φ = 3571776.

The previous prime is 13394321. The next prime is 13394347. The reversal of 13394340 is 4349331.

It can be written as a sum of positive squares in 2 ways, for example, as 5875776 + 7518564 = 2424^2 + 2742^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13394347) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37027 + ... + 37386.

Almost surely, 2^13394340 is an apocalyptic number.

13394340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13394340 is an abundant number, since it is smaller than the sum of its proper divisors (27235704).

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

13394340 is a wasteful number, since it uses less digits than its factorization.

13394340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74428 (or 74423 counting only the distinct ones).

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

The square root of 13394340 is about 3659.8278648046. The cubic root of 13394340 is about 237.4873271170.

The spelling of 13394340 in words is "thirteen million, three hundred ninety-four thousand, three hundred forty".