13640082 has 16 divisors (see below), whose sum is σ = 27423840. Its totient is φ = 4522752.

The previous prime is 13640071. The next prime is 13640089. The reversal of 13640082 is 28004631.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13640089) 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, 4732 + ... + 7047.

It is an arithmetic number, because the mean of its divisors is an integer number (1713990).

Almost surely, 2^13640082 is an apocalyptic number.

13640082 is an abundant number, since it is smaller than the sum of its proper divisors (13783758).

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

13640082 is a wasteful number, since it uses less digits than its factorization.

13640082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11977.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 13640082 is about 3693.2481638796. The cubic root of 13640082 is about 238.9309044381.

The spelling of 13640082 in words is "thirteen million, six hundred forty thousand, eighty-two".