20379130 has 16 divisors (see below), whose sum is σ = 37200384. Its totient is φ = 8036560.

The previous prime is 20379109. The next prime is 20379133. The reversal of 20379130 is 3197302.

It is a junction number, because it is equal to n+sod(n) for n = 20379095 and 20379104.

It is not an unprimeable number, because it can be changed into a prime (20379133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13642 + ... + 15061.

It is an arithmetic number, because the mean of its divisors is an integer number (2325024).

Almost surely, 2^20379130 is an apocalyptic number.

20379130 is a deficient number, since it is larger than the sum of its proper divisors (16821254).

20379130 is a wasteful number, since it uses less digits than its factorization.

20379130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28781.

The product of its (nonzero) digits is 1134, while the sum is 25.

The square root of 20379130 is about 4514.3249772253. The cubic root of 20379130 is about 273.1462315950.

The spelling of 20379130 in words is "twenty million, three hundred seventy-nine thousand, one hundred thirty".