20440622 has 4 divisors (see below), whose sum is σ = 30660936. Its totient is φ = 10220310.

The previous prime is 20440601. The next prime is 20440639. The reversal of 20440622 is 22604402.

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

It is a junction number, because it is equal to n+sod(n) for n = 20440594 and 20440603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5110154 + ... + 5110157.

It is an arithmetic number, because the mean of its divisors is an integer number (7665234).

Almost surely, 2^20440622 is an apocalyptic number.

20440622 is a deficient number, since it is larger than the sum of its proper divisors (10220314).

20440622 is a wasteful number, since it uses less digits than its factorization.

20440622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10220313.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 20440622 is about 4521.1306108096. The cubic root of 20440622 is about 273.4206862717.

The spelling of 20440622 in words is "twenty million, four hundred forty thousand, six hundred twenty-two".