20858052 has 12 divisors (see below), whose sum is σ = 48668816. Its totient is φ = 6952680.

The previous prime is 20858039. The next prime is 20858069. The reversal of 20858052 is 25085802.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 869074 + ... + 869097.

Almost surely, 2^20858052 is an apocalyptic number.

It is an amenable number.

20858052 is an abundant number, since it is smaller than the sum of its proper divisors (27810764).

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

20858052 is a wasteful number, since it uses less digits than its factorization.

20858052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1738178 (or 1738176 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 20858052 is about 4567.0616374207. The cubic root of 20858052 is about 275.2693867145.

The spelling of 20858052 in words is "twenty million, eight hundred fifty-eight thousand, fifty-two".