20064432 has 20 divisors (see below), whose sum is σ = 51833240. Its totient is φ = 6688128.

The previous prime is 20064431. The next prime is 20064449. The reversal of 20064432 is 23446002.

It is a junction number, because it is equal to n+sod(n) for n = 20064399 and 20064408.

It is not an unprimeable number, because it can be changed into a prime (20064431) 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, 208957 + ... + 209052.

It is an arithmetic number, because the mean of its divisors is an integer number (2591662).

Almost surely, 2^20064432 is an apocalyptic number.

It is an amenable number.

20064432 is an abundant number, since it is smaller than the sum of its proper divisors (31768808).

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

20064432 is a wasteful number, since it uses less digits than its factorization.

20064432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418020 (or 418014 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 20064432 is about 4479.3338790494. Note that the first 3 decimals coincide. The cubic root of 20064432 is about 271.7329414545.

The spelling of 20064432 in words is "twenty million, sixty-four thousand, four hundred thirty-two".