20497882 has 8 divisors (see below), whose sum is σ = 31738752. Its totient is φ = 9918300.

The previous prime is 20497879. The next prime is 20497901. The reversal of 20497882 is 28879402.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 165244 + ... + 165367.

It is an arithmetic number, because the mean of its divisors is an integer number (3967344).

Almost surely, 2^20497882 is an apocalyptic number.

20497882 is a deficient number, since it is larger than the sum of its proper divisors (11240870).

20497882 is a wasteful number, since it uses less digits than its factorization.

20497882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330644.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 20497882 is about 4527.4586690549. The cubic root of 20497882 is about 273.6757579646.

The spelling of 20497882 in words is "twenty million, four hundred ninety-seven thousand, eight hundred eighty-two".