13670040 has 64 divisors (see below), whose sum is σ = 43428960. Its totient is φ = 3430400.

The previous prime is 13670011. The next prime is 13670071. The reversal of 13670040 is 4007631.

It is a junction number, because it is equal to n+sod(n) for n = 13669989 and 13670016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1311 + ... + 5390.

Almost surely, 2^13670040 is an apocalyptic number.

13670040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13670040 is an abundant number, since it is smaller than the sum of its proper divisors (29758920).

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

13670040 is a wasteful number, since it uses less digits than its factorization.

13670040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6732 (or 6728 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 13670040 is about 3697.3017188214. The cubic root of 13670040 is about 239.1056995280.

Adding to 13670040 its reverse (4007631), we get a palindrome (17677671).

The spelling of 13670040 in words is "thirteen million, six hundred seventy thousand, forty".