20220404 has 12 divisors (see below), whose sum is σ = 36924384. Its totient is φ = 9670584.

The previous prime is 20220383. The next prime is 20220407. The reversal of 20220404 is 40402202.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109802 + ... + 109985.

It is an arithmetic number, because the mean of its divisors is an integer number (3077032).

Almost surely, 2^20220404 is an apocalyptic number.

It is an amenable number.

20220404 is a deficient number, since it is larger than the sum of its proper divisors (16703980).

20220404 is a wasteful number, since it uses less digits than its factorization.

20220404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219814 (or 219812 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 20220404 is about 4496.7103531359. The cubic root of 20220404 is about 272.4352352890.

Adding to 20220404 its reverse (40402202), we get a palindrome (60622606).

The spelling of 20220404 in words is "twenty million, two hundred twenty thousand, four hundred four".