20954286 has 24 divisors (see below), whose sum is σ = 45551064. Its totient is φ = 6961680.

The previous prime is 20954267. The next prime is 20954303. The reversal of 20954286 is 68245902.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20954286.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4200 + ... + 7716.

It is an arithmetic number, because the mean of its divisors is an integer number (1897961).

Almost surely, 2^20954286 is an apocalyptic number.

20954286 is an abundant number, since it is smaller than the sum of its proper divisors (24596778).

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

20954286 is a wasteful number, since it uses less digits than its factorization.

20954286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856 (or 3853 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 20954286 is about 4577.5851712448. The cubic root of 20954286 is about 275.6920794051.

It can be divided in two parts, 209542 and 86, that added together give a triangular number (209628 = T₆₄₇).

The spelling of 20954286 in words is "twenty million, nine hundred fifty-four thousand, two hundred eighty-six".