20379516 has 24 divisors (see below), whose sum is σ = 47653200. Its totient is φ = 6778752.

The previous prime is 20379503. The next prime is 20379521. The reversal of 20379516 is 61597302.

It is a congruent number.

It is an unprimeable number.

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, 5160 + ... + 8208.

It is an arithmetic number, because the mean of its divisors is an integer number (1985550).

Almost surely, 2^20379516 is an apocalyptic number.

It is an amenable number.

20379516 is an abundant number, since it is smaller than the sum of its proper divisors (27273684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20379516 is a wasteful number, since it uses less digits than its factorization.

20379516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3613 (or 3611 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 20379516 is about 4514.3677298155. The cubic root of 20379516 is about 273.1479561335.

The spelling of 20379516 in words is "twenty million, three hundred seventy-nine thousand, five hundred sixteen".