20452732 has 12 divisors (see below), whose sum is σ = 35872200. Its totient is φ = 10203536.

The previous prime is 20452723. The next prime is 20452739. The reversal of 20452732 is 23725402.

It is a junction number, because it is equal to n+sod(n) for n = 20452697 and 20452706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20452739) 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, 3607 + ... + 7342.

It is an arithmetic number, because the mean of its divisors is an integer number (2989350).

Almost surely, 2^20452732 is an apocalyptic number.

It is an amenable number.

20452732 is a deficient number, since it is larger than the sum of its proper divisors (15419468).

20452732 is a wasteful number, since it uses less digits than its factorization.

20452732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11420 (or 11418 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 20452732 is about 4522.4696792792. The cubic root of 20452732 is about 273.4746714332.

It can be divided in two parts, 20 and 452732, that multiplied together give a triangular number (9054640 = T₄₂₅₅).

The spelling of 20452732 in words is "twenty million, four hundred fifty-two thousand, seven hundred thirty-two".