20124632 has 64 divisors (see below), whose sum is σ = 43925760. Its totient is φ = 8553600.

The previous prime is 20124631. The next prime is 20124647. The reversal of 20124632 is 23642102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20124631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123383 + ... + 123545.

It is an arithmetic number, because the mean of its divisors is an integer number (686340).

Almost surely, 2^20124632 is an apocalyptic number.

20124632 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20124632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21962880).

20124632 is an abundant number, since it is smaller than the sum of its proper divisors (23801128).

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

20124632 is a wasteful number, since it uses less digits than its factorization.

20124632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 260 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 20124632 is about 4486.0485953676. The cubic root of 20124632 is about 272.0044333187.

Adding to 20124632 its reverse (23642102), we get a palindrome (43766734).

The spelling of 20124632 in words is "twenty million, one hundred twenty-four thousand, six hundred thirty-two".