22227404 has 6 divisors (see below), whose sum is σ = 38897964. Its totient is φ = 11113700.

The previous prime is 22227391. The next prime is 22227409. The reversal of 22227404 is 40472222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 22227404.

It is not an unprimeable number, because it can be changed into a prime (22227409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2778422 + ... + 2778429.

It is an arithmetic number, because the mean of its divisors is an integer number (6482994).

Almost surely, 2^22227404 is an apocalyptic number.

It is an amenable number.

22227404 is a deficient number, since it is larger than the sum of its proper divisors (16670560).

22227404 is a wasteful number, since it uses less digits than its factorization.

22227404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5556855 (or 5556853 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 23.

The square root of 22227404 is about 4714.5947864053. The cubic root of 22227404 is about 281.1660724722.

Adding to 22227404 its reverse (40472222), we get a palindrome (62699626).

The spelling of 22227404 in words is "twenty-two million, two hundred twenty-seven thousand, four hundred four".