20868482 has 16 divisors (see below), whose sum is σ = 31881600. Its totient is φ = 10242960.

The previous prime is 20868473. The next prime is 20868499. The reversal of 20868482 is 28486802.

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 7 ways as a sum of consecutive naturals, for example, 42257 + ... + 42747.

It is an arithmetic number, because the mean of its divisors is an integer number (1992600).

Almost surely, 2^20868482 is an apocalyptic number.

20868482 is a deficient number, since it is larger than the sum of its proper divisors (11013118).

20868482 is a wasteful number, since it uses less digits than its factorization.

20868482 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841.

The product of its (nonzero) digits is 49152, while the sum is 38.

The square root of 20868482 is about 4568.2033667515. The cubic root of 20868482 is about 275.3152615847.

The spelling of 20868482 in words is "twenty million, eight hundred sixty-eight thousand, four hundred eighty-two".