20802754 has 24 divisors (see below), whose sum is σ = 36771840. Its totient is φ = 8799336.

The previous prime is 20802709. The next prime is 20802757. The reversal of 20802754 is 45720802.

It is not an unprimeable number, because it can be changed into a prime (20802757) by changing a digit.

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, 6399 + ... + 9085.

It is an arithmetic number, because the mean of its divisors is an integer number (1532160).

Almost surely, 2^20802754 is an apocalyptic number.

20802754 is a deficient number, since it is larger than the sum of its proper divisors (15969086).

20802754 is a wasteful number, since it uses less digits than its factorization.

20802754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782 (or 2775 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 20802754 is about 4561.0036176263. The cubic root of 20802754 is about 275.0259105063.

The spelling of 20802754 in words is "twenty million, eight hundred two thousand, seven hundred fifty-four".