22271504 has 10 divisors (see below), whose sum is σ = 43151070. Its totient is φ = 11135744.

The previous prime is 22271503. The next prime is 22271531. The reversal of 22271504 is 40517222.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14137600 + 8133904 = 3760^2 + 2852^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22271504.

It is not an unprimeable number, because it can be changed into a prime (22271503) by changing a digit.

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 as a sum of consecutive naturals, namely, 695969 + ... + 696000.

It is an arithmetic number, because the mean of its divisors is an integer number (4315107).

Almost surely, 2^22271504 is an apocalyptic number.

It is an amenable number.

22271504 is a deficient number, since it is larger than the sum of its proper divisors (20879566).

22271504 is a wasteful number, since it uses less digits than its factorization.

22271504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391977 (or 1391971 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 22271504 is about 4719.2694349867. The cubic root of 22271504 is about 281.3518976292.

Adding to 22271504 its reverse (40517222), we get a palindrome (62788726).

The spelling of 22271504 in words is "twenty-two million, two hundred seventy-one thousand, five hundred four".