20064582 has 48 divisors (see below), whose sum is σ = 45669312. Its totient is φ = 6359040.

The previous prime is 20064563. The next prime is 20064587. The reversal of 20064582 is 28546002.

20064582 is a `hidden beast` number, since 20 + 0 + 64 + 582 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20064587) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30982 + ... + 31622.

It is an arithmetic number, because the mean of its divisors is an integer number (951444).

Almost surely, 2^20064582 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20064582, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22834656).

20064582 is an abundant number, since it is smaller than the sum of its proper divisors (25604730).

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

20064582 is a wasteful number, since it uses less digits than its factorization.

20064582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733 (or 730 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 20064582 is about 4479.3506225791. The cubic root of 20064582 is about 271.7336186037.

The spelling of 20064582 in words is "twenty million, sixty-four thousand, five hundred eighty-two".