20440682 has 4 divisors (see below), whose sum is σ = 30661026. Its totient is φ = 10220340.

The previous prime is 20440649. The next prime is 20440691. The reversal of 20440682 is 28604402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20421361 + 19321 = 4519^2 + 139^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110169 + ... + 5110172.

Almost surely, 2^20440682 is an apocalyptic number.

20440682 is a deficient number, since it is larger than the sum of its proper divisors (10220344).

20440682 is a wasteful number, since it uses less digits than its factorization.

20440682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10220343.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 20440682 is about 4521.1372463131. The cubic root of 20440682 is about 273.4209537982.

The spelling of 20440682 in words is "twenty million, four hundred forty thousand, six hundred eighty-two".