20472032 has 24 divisors (see below), whose sum is σ = 46062576. Its totient is φ = 8773632.

The previous prime is 20472031. The next prime is 20472041. The reversal of 20472032 is 23027402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20471995 and 20472013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20472031) 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, 45473 + ... + 45920.

It is an arithmetic number, because the mean of its divisors is an integer number (1919274).

Almost surely, 2^20472032 is an apocalyptic number.

It is an amenable number.

20472032 is an abundant number, since it is smaller than the sum of its proper divisors (25590544).

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

20472032 is an equidigital number, since it uses as much as digits as its factorization.

20472032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91410 (or 91402 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 20472032 is about 4524.6029660071. The cubic root of 20472032 is about 273.5606648648.

Adding to 20472032 its reverse (23027402), we get a palindrome (43499434).

The spelling of 20472032 in words is "twenty million, four hundred seventy-two thousand, thirty-two".