20379814 has 16 divisors (see below), whose sum is σ = 37624608. Its totient is φ = 8062272.

The previous prime is 20379809. The next prime is 20379841. The reversal of 20379814 is 41897302.

It is a self number, because there is not a number n which added to its sum of digits gives 20379814.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55807 + ... + 56170.

It is an arithmetic number, because the mean of its divisors is an integer number (2351538).

Almost surely, 2^20379814 is an apocalyptic number.

20379814 is a deficient number, since it is larger than the sum of its proper divisors (17244794).

20379814 is a wasteful number, since it uses less digits than its factorization.

20379814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111999.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 20379814 is about 4514.4007354244. The cubic root of 20379814 is about 273.1492874980.

The spelling of 20379814 in words is "twenty million, three hundred seventy-nine thousand, eight hundred fourteen".