13640076 has 36 divisors (see below), whose sum is σ = 35758632. Its totient is φ = 4546368.

The previous prime is 13640071. The next prime is 13640089. The reversal of 13640076 is 67004631.

13640076 is a `hidden beast` number, since 13 + 640 + 0 + 7 + 6 = 666.

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

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (13640071) 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, 6045 + ... + 7988.

Almost surely, 2^13640076 is an apocalyptic number.

It is an amenable number.

13640076 is an abundant number, since it is smaller than the sum of its proper divisors (22118556).

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

13640076 is a wasteful number, since it uses less digits than its factorization.

13640076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14052 (or 14038 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 13640076 is about 3693.2473515864. The cubic root of 13640076 is about 238.9308694045.

The spelling of 13640076 in words is "thirteen million, six hundred forty thousand, seventy-six".