20493882 has 24 divisors (see below), whose sum is σ = 44728320. Its totient is φ = 6781320.

The previous prime is 20493877. The next prime is 20493901. The reversal of 20493882 is 28839402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1594 + ... + 6597.

It is an arithmetic number, because the mean of its divisors is an integer number (1863680).

Almost surely, 2^20493882 is an apocalyptic number.

20493882 is an abundant number, since it is smaller than the sum of its proper divisors (24234438).

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

20493882 is a wasteful number, since it uses less digits than its factorization.

20493882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8338 (or 8335 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 20493882 is about 4527.0168985768. The cubic root of 20493882 is about 273.6579549180.

The spelling of 20493882 in words is "twenty million, four hundred ninety-three thousand, eight hundred eighty-two".