20379043 has 4 divisors (see below), whose sum is σ = 20437128. Its totient is φ = 20320960.

The previous prime is 20379041. The next prime is 20379061. The reversal of 20379043 is 34097302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34097302 = 2 ⋅17048651.

It is a cyclic number.

It is not a de Polignac number, because 20379043 - 2¹ = 20379041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20379041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28513 + ... + 29218.

It is an arithmetic number, because the mean of its divisors is an integer number (5109282).

Almost surely, 2^20379043 is an apocalyptic number.

20379043 is a deficient number, since it is larger than the sum of its proper divisors (58085).

20379043 is an equidigital number, since it uses as much as digits as its factorization.

20379043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58084.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 20379043 is about 4514.3153412229. The cubic root of 20379043 is about 273.1458429007.

The spelling of 20379043 in words is "twenty million, three hundred seventy-nine thousand, forty-three".