13670540 has 24 divisors (see below), whose sum is σ = 30917040. Its totient is φ = 5047488.

The previous prime is 13670539. The next prime is 13670543. The reversal of 13670540 is 4507631.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (13670543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26030 + ... + 26549.

It is an arithmetic number, because the mean of its divisors is an integer number (1288210).

Almost surely, 2^13670540 is an apocalyptic number.

13670540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13670540 is an abundant number, since it is smaller than the sum of its proper divisors (17246500).

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

13670540 is a wasteful number, since it uses less digits than its factorization.

13670540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52601 (or 52599 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 13670540 is about 3697.3693350814. The cubic root of 13670540 is about 239.1086146961.

The spelling of 13670540 in words is "thirteen million, six hundred seventy thousand, five hundred forty".