1422224 has 20 divisors (see below), whose sum is σ = 2785536. Its totient is φ = 703392.

The previous prime is 1422221. The next prime is 1422227. The reversal of 1422224 is 4222241.

1422224 = T₁₁₂ + T₁₁₃ + ... + T₂₁₄.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1422221) and next prime (1422227).

It is a super-2 number, since 2×1422224² = 4045442212352, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422221) 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, 1217 + ... + 2079.

2^1422224 is an apocalyptic number.

It is an amenable number.

1422224 is a deficient number, since it is larger than the sum of its proper divisors (1363312).

1422224 is a wasteful number, since it uses less digits than its factorization.

1422224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974 (or 968 counting only the distinct ones).

The product of its digits is 256, while the sum is 17.

The square root of 1422224 is about 1192.5703333556. The cubic root of 1422224 is about 112.4577355643.

Adding to 1422224 its sum of digits (17), we get a palindrome (1422241).

Adding to 1422224 its reverse (4222241), we get a palindrome (5644465).

The spelling of 1422224 in words is "one million, four hundred twenty-two thousand, two hundred twenty-four".