20465024 has 32 divisors (see below), whose sum is σ = 41199840. Its totient is φ = 10124800.

The previous prime is 20464987. The next prime is 20465041. The reversal of 20465024 is 42056402.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12137 + ... + 13719.

It is an arithmetic number, because the mean of its divisors is an integer number (1287495).

Almost surely, 2^20465024 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20465024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20599920).

20465024 is an abundant number, since it is smaller than the sum of its proper divisors (20734816).

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

20465024 is a wasteful number, since it uses less digits than its factorization.

20465024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698 (or 1686 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 20465024 is about 4523.8284671283. The cubic root of 20465024 is about 273.5294461443.

The spelling of 20465024 in words is "twenty million, four hundred sixty-five thousand, twenty-four".