20562432 has 80 divisors (see below), whose sum is σ = 59808672. Its totient is φ = 6225920.

The previous prime is 20562431. The next prime is 20562439. The reversal of 20562432 is 23426502.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20562431) 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, 16288 + ... + 17504.

Almost surely, 2^20562432 is an apocalyptic number.

20562432 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 20562432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29904336).

20562432 is an abundant number, since it is smaller than the sum of its proper divisors (39246240).

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

20562432 is a wasteful number, since it uses less digits than its factorization.

20562432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249 (or 1233 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 20562432 is about 4534.5817888754. The cubic root of 20562432 is about 273.9627349111.

Adding to 20562432 its reverse (23426502), we get a palindrome (43988934).

The spelling of 20562432 in words is "twenty million, five hundred sixty-two thousand, four hundred thirty-two".