1422213256 has 8 divisors (see below), whose sum is σ = 2666649870. Its totient is φ = 711106624.

The previous prime is 1422213239. The next prime is 1422213293. The reversal of 1422213256 is 6523122241.

It can be written as a sum of positive squares in only one way, i.e., 1413008100 + 9205156 = 37590^2 + 3034^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 88888321 + ... + 88888336.

Almost surely, 2^1422213256 is an apocalyptic number.

It is an amenable number.

1422213256 is a deficient number, since it is larger than the sum of its proper divisors (1244436614).

1422213256 is a wasteful number, since it uses less digits than its factorization.

1422213256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177776663 (or 177776659 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 1422213256 is about 37712.2427866601. The cubic root of 1422213256 is about 1124.5745238126.

Adding to 1422213256 its reverse (6523122241), we get a palindrome (7945335497).

The spelling of 1422213256 in words is "one billion, four hundred twenty-two million, two hundred thirteen thousand, two hundred fifty-six".