20546432 has 32 divisors (see below), whose sum is σ = 41895480. Its totient is φ = 10031616.

The previous prime is 20546431. The next prime is 20546437. The reversal of 20546432 is 23464502.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20546431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3638 + ... + 7370.

Almost surely, 2^20546432 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 20546432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20947740).

20546432 is an abundant number, since it is smaller than the sum of its proper divisors (21349048).

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

20546432 is an equidigital number, since it uses as much as digits as its factorization.

20546432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3790 (or 3778 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 20546432 is about 4532.8172255232. The cubic root of 20546432 is about 273.8916580205.

The spelling of 20546432 in words is "twenty million, five hundred forty-six thousand, four hundred thirty-two".