22406404 has 12 divisors (see below), whose sum is σ = 40045824. Its totient is φ = 10964744.

The previous prime is 22406387. The next prime is 22406411. The reversal of 22406404 is 40460422.

It is a super-2 number, since 2×22406404² = 1004093880422432, which contains 22 as substring.

It is an unprimeable number.

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, 59404 + ... + 59779.

It is an arithmetic number, because the mean of its divisors is an integer number (3337152).

Almost surely, 2^22406404 is an apocalyptic number.

It is an amenable number.

22406404 is a deficient number, since it is larger than the sum of its proper divisors (17639420).

22406404 is a wasteful number, since it uses less digits than its factorization.

22406404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119234 (or 119232 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 22406404 is about 4733.5403241126. The cubic root of 22406404 is about 281.9188103546.

Adding to 22406404 its reverse (40460422), we get a palindrome (62866826).

The spelling of 22406404 in words is "twenty-two million, four hundred six thousand, four hundred four".