20223404 has 12 divisors (see below), whose sum is σ = 37472904. Its totient is φ = 9516864.

The previous prime is 20223403. The next prime is 20223443. The reversal of 20223404 is 40432202.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (20223403) 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, 148634 + ... + 148769.

It is an arithmetic number, because the mean of its divisors is an integer number (3122742).

Almost surely, 2^20223404 is an apocalyptic number.

It is an amenable number.

20223404 is a deficient number, since it is larger than the sum of its proper divisors (17249500).

20223404 is a wasteful number, since it uses less digits than its factorization.

20223404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297424 (or 297422 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 20223404 is about 4497.0439179532. The cubic root of 20223404 is about 272.4487079063.

Adding to 20223404 its reverse (40432202), we get a palindrome (60655606).

The spelling of 20223404 in words is "twenty million, two hundred twenty-three thousand, four hundred four".