20002432 has 16 divisors (see below), whose sum is σ = 39848850. Its totient is φ = 10001152.

The previous prime is 20002429. The next prime is 20002453. The reversal of 20002432 is 23420002.

It can be written as a sum of positive squares in only one way, i.e., 18870336 + 1132096 = 4344^2 + 1064^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78007 + ... + 78262.

Almost surely, 2^20002432 is an apocalyptic number.

It is an amenable number.

20002432 is a deficient number, since it is larger than the sum of its proper divisors (19846418).

20002432 is an equidigital number, since it uses as much as digits as its factorization.

20002432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156283 (or 156271 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 20002432 is about 4472.4078526002. The cubic root of 20002432 is about 271.4527636530.

Adding to 20002432 its reverse (23420002), we get a palindrome (43422434).

The spelling of 20002432 in words is "twenty million, two thousand, four hundred thirty-two".