20464822 has 32 divisors (see below), whose sum is σ = 36396864. Its totient is φ = 8448000.

The previous prime is 20464817. The next prime is 20464823. The reversal of 20464822 is 22846402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20464823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57798 + ... + 58150.

It is an arithmetic number, because the mean of its divisors is an integer number (1137402).

Almost surely, 2^20464822 is an apocalyptic number.

20464822 is a deficient number, since it is larger than the sum of its proper divisors (15932042).

20464822 is a wasteful number, since it uses less digits than its factorization.

20464822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504.

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 20464822 is about 4523.8061408509. The cubic root of 20464822 is about 273.5285461839.

The spelling of 20464822 in words is "twenty million, four hundred sixty-four thousand, eight hundred twenty-two".