20622404 has 12 divisors (see below), whose sum is σ = 39370128. Its totient is φ = 9373800.

The previous prime is 20622403. The next prime is 20622419. The reversal of 20622404 is 40422602.

It is not an unprimeable number, because it can be changed into a prime (20622401) 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 3 ways as a sum of consecutive naturals, for example, 234302 + ... + 234389.

It is an arithmetic number, because the mean of its divisors is an integer number (3280844).

Almost surely, 2^20622404 is an apocalyptic number.

It is an amenable number.

20622404 is a deficient number, since it is larger than the sum of its proper divisors (18747724).

20622404 is a wasteful number, since it uses less digits than its factorization.

20622404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468706 (or 468704 counting only the distinct ones).

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

The square root of 20622404 is about 4541.1897119588. The cubic root of 20622404 is about 274.2288212336.

The spelling of 20622404 in words is "twenty million, six hundred twenty-two thousand, four hundred four".