20206444 has 6 divisors (see below), whose sum is σ = 35361284. Its totient is φ = 10103220.

The previous prime is 20206427. The next prime is 20206453. The reversal of 20206444 is 44460202.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525802 + ... + 2525809.

Almost surely, 2^20206444 is an apocalyptic number.

It is an amenable number.

20206444 is a deficient number, since it is larger than the sum of its proper divisors (15154840).

20206444 is a wasteful number, since it uses less digits than its factorization.

20206444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5051615 (or 5051613 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 20206444 is about 4495.1578392755. The cubic root of 20206444 is about 272.3725251762.

Adding to 20206444 its reverse (44460202), we get a palindrome (64666646).

It can be divided in two parts, 2020 and 6444, that added together give a square (8464 = 92²).

The spelling of 20206444 in words is "twenty million, two hundred six thousand, four hundred forty-four".