20902276 has 24 divisors (see below), whose sum is σ = 37255680. Its totient is φ = 10260000.

The previous prime is 20902241. The next prime is 20902279. The reversal of 20902276 is 67220902.

It is not an unprimeable number, because it can be changed into a prime (20902279) 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 7 ways as a sum of consecutive naturals, for example, 83151 + ... + 83401.

It is an arithmetic number, because the mean of its divisors is an integer number (1552320).

Almost surely, 2^20902276 is an apocalyptic number.

It is an amenable number.

20902276 is a deficient number, since it is larger than the sum of its proper divisors (16353404).

20902276 is a wasteful number, since it uses less digits than its factorization.

20902276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 20902276 is about 4571.9006988341. The cubic root of 20902276 is about 275.4637947686.

The spelling of 20902276 in words is "twenty million, nine hundred two thousand, two hundred seventy-six".