20389052 has 48 divisors (see below), whose sum is σ = 40803840. Its totient is φ = 8854272.

The previous prime is 20389049. The next prime is 20389073. The reversal of 20389052 is 25098302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55373 + ... + 55739.

It is an arithmetic number, because the mean of its divisors is an integer number (850080).

Almost surely, 2^20389052 is an apocalyptic number.

It is an amenable number.

20389052 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

20389052 is a wasteful number, since it uses less digits than its factorization.

20389052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 448 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 20389052 is about 4515.4237896348. The cubic root of 20389052 is about 273.1905533627.

The spelling of 20389052 in words is "twenty million, three hundred eighty-nine thousand, fifty-two".