13642774 has 8 divisors (see below), whose sum is σ = 20590200. Its totient is φ = 6779376.

The previous prime is 13642763. The next prime is 13642787. The reversal of 13642774 is 47724631.

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

It is a super-2 number, since 2×13642774² = 372250564830152, which contains 22 as substring.

It is a congruent number.

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, 20599 + ... + 21250.

It is an arithmetic number, because the mean of its divisors is an integer number (2573775).

Almost surely, 2^13642774 is an apocalyptic number.

13642774 is a deficient number, since it is larger than the sum of its proper divisors (6947426).

13642774 is a wasteful number, since it uses less digits than its factorization.

13642774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42014.

The product of its digits is 28224, while the sum is 34.

The square root of 13642774 is about 3693.6125947370. The cubic root of 13642774 is about 238.9466218335.

The spelling of 13642774 in words is "thirteen million, six hundred forty-two thousand, seven hundred seventy-four".