20534024 has 32 divisors (see below), whose sum is σ = 44613120. Its totient is φ = 8678016.

The previous prime is 20533999. The next prime is 20534029. The reversal of 20534024 is 42043502.

It is a super-2 number, since 2×20534024² = 843292283265152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20533987 and 20534005.

It is not an unprimeable number, because it can be changed into a prime (20534029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1577 + ... + 6599.

It is an arithmetic number, because the mean of its divisors is an integer number (1394160).

Almost surely, 2^20534024 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 20534024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22306560).

20534024 is an abundant number, since it is smaller than the sum of its proper divisors (24079096).

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

20534024 is a wasteful number, since it uses less digits than its factorization.

20534024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5109 (or 5105 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 20534024 is about 4531.4483335905. The cubic root of 20534024 is about 273.8365124843.

Adding to 20534024 its reverse (42043502), we get a palindrome (62577526).

The spelling of 20534024 in words is "twenty million, five hundred thirty-four thousand, twenty-four".