13641994 has 8 divisors (see below), whose sum is σ = 20560608. Its totient is φ = 6788460.

The previous prime is 13641989. The next prime is 13642001. The reversal of 13641994 is 49914631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×13641994² = 372208000592072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15742 + ... + 16585.

It is an arithmetic number, because the mean of its divisors is an integer number (2570076).

Almost surely, 2^13641994 is an apocalyptic number.

13641994 is a deficient number, since it is larger than the sum of its proper divisors (6918614).

13641994 is a wasteful number, since it uses less digits than its factorization.

13641994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32540.

The product of its digits is 23328, while the sum is 37.

The square root of 13641994 is about 3693.5070055436. The cubic root of 13641994 is about 238.9420679718.

The spelling of 13641994 in words is "thirteen million, six hundred forty-one thousand, nine hundred ninety-four".