20079814 has 4 divisors (see below), whose sum is σ = 30119724. Its totient is φ = 10039906.

The previous prime is 20079809. The next prime is 20079817. The reversal of 20079814 is 41897002.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20079817) 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 as a sum of consecutive naturals, namely, 5019952 + ... + 5019955.

It is an arithmetic number, because the mean of its divisors is an integer number (7529931).

Almost surely, 2^20079814 is an apocalyptic number.

20079814 is a deficient number, since it is larger than the sum of its proper divisors (10039910).

20079814 is a wasteful number, since it uses less digits than its factorization.

20079814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10039909.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 20079814 is about 4481.0505464679. The cubic root of 20079814 is about 271.8023632792.

The spelling of 20079814 in words is "twenty million, seventy-nine thousand, eight hundred fourteen".