20032432 has 40 divisors (see below), whose sum is σ = 44568576. Its totient is φ = 8544576.

The previous prime is 20032423. The next prime is 20032457. The reversal of 20032432 is 23423002.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42663 + ... + 43129.

Almost surely, 2^20032432 is an apocalyptic number.

It is an amenable number.

20032432 is an abundant number, since it is smaller than the sum of its proper divisors (24536144).

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

20032432 is a wasteful number, since it uses less digits than its factorization.

20032432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 859 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 20032432 is about 4475.7604940390. The cubic root of 20032432 is about 271.5884057423.

Adding to 20032432 its reverse (23423002), we get a palindrome (43455434).

The spelling of 20032432 in words is "twenty million, thirty-two thousand, four hundred thirty-two".