13670440 has 32 divisors (see below), whose sum is σ = 35153280. Its totient is φ = 4686912.

The previous prime is 13670417. The next prime is 13670497. The reversal of 13670440 is 4407631.

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, 24132 + ... + 24691.

It is an arithmetic number, because the mean of its divisors is an integer number (1098540).

Almost surely, 2^13670440 is an apocalyptic number.

13670440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13670440 is an abundant number, since it is smaller than the sum of its proper divisors (21482840).

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

13670440 is a wasteful number, since it uses less digits than its factorization.

13670440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48841 (or 48837 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 13670440 is about 3697.3558119283. The cubic root of 13670440 is about 239.1080316681.

The spelling of 13670440 in words is "thirteen million, six hundred seventy thousand, four hundred forty".