13933642 has 8 divisors (see below), whose sum is σ = 22129956. Its totient is φ = 6556992.

The previous prime is 13933637. The next prime is 13933649. The reversal of 13933642 is 24633931.

It can be written as a sum of positive squares in 2 ways, for example, as 12895281 + 1038361 = 3591^2 + 1019^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13933649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204873 + ... + 204940.

Almost surely, 2^13933642 is an apocalyptic number.

13933642 is a deficient number, since it is larger than the sum of its proper divisors (8196314).

13933642 is a wasteful number, since it uses less digits than its factorization.

13933642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409832.

The product of its digits is 11664, while the sum is 31.

The square root of 13933642 is about 3732.7793934279. The cubic root of 13933642 is about 240.6328321957.

The spelling of 13933642 in words is "thirteen million, nine hundred thirty-three thousand, six hundred forty-two".