20476532 has 18 divisors (see below), whose sum is σ = 37463538. Its totient is φ = 9792112.

The previous prime is 20476531. The next prime is 20476543. The reversal of 20476532 is 23567402.

It can be written as a sum of positive squares in only one way, i.e., 18696976 + 1779556 = 4324^2 + 1334^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20476495 and 20476504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20476531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2723 + ... + 6954.

Almost surely, 2^20476532 is an apocalyptic number.

It is an amenable number.

20476532 is a deficient number, since it is larger than the sum of its proper divisors (16987006).

20476532 is a wasteful number, since it uses less digits than its factorization.

20476532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9727 (or 9702 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 29.

The square root of 20476532 is about 4525.1002198846. The cubic root of 20476532 is about 273.5807073762.

The spelling of 20476532 in words is "twenty million, four hundred seventy-six thousand, five hundred thirty-two".