22316404 has 24 divisors (see below), whose sum is σ = 43981056. Its totient is φ = 9816000.

The previous prime is 22316389. The next prime is 22316419. The reversal of 22316404 is 40461322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22316389) and next prime (22316419).

It is a super-3 number, since 3×22316404³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 6817 + ... + 9544.

It is an arithmetic number, because the mean of its divisors is an integer number (1832544).

Almost surely, 2^22316404 is an apocalyptic number.

It is an amenable number.

22316404 is a deficient number, since it is larger than the sum of its proper divisors (21664652).

22316404 is a wasteful number, since it uses less digits than its factorization.

22316404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16407 (or 16405 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 22316404 is about 4724.0241320298. The cubic root of 22316404 is about 281.5408419173.

Adding to 22316404 its reverse (40461322), we get a palindrome (62777726).

The spelling of 22316404 in words is "twenty-two million, three hundred sixteen thousand, four hundred four".