20443722 has 32 divisors (see below), whose sum is σ = 44217600. Its totient is φ = 6264000.

The previous prime is 20443697. The next prime is 20443727. The reversal of 20443722 is 22734402.

It is a junction number, because it is equal to n+sod(n) for n = 20443692 and 20443701.

It is not an unprimeable number, because it can be changed into a prime (20443727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26847 + ... + 27597.

It is an arithmetic number, because the mean of its divisors is an integer number (1381800).

Almost surely, 2^20443722 is an apocalyptic number.

20443722 is an abundant number, since it is smaller than the sum of its proper divisors (23773878).

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

20443722 is a wasteful number, since it uses less digits than its factorization.

20443722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118.

The product of its (nonzero) digits is 2688, while the sum is 24.

The square root of 20443722 is about 4521.4734324112. The cubic root of 20443722 is about 273.4345077898.

The spelling of 20443722 in words is "twenty million, four hundred forty-three thousand, seven hundred twenty-two".