1422656 has 14 divisors (see below), whose sum is σ = 2823210. Its totient is φ = 711296.

The previous prime is 1422647. The next prime is 1422661. The reversal of 1422656 is 6562241.

It can be written as a sum of positive squares in only one way, i.e., 1081600 + 341056 = 1040^2 + 584^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11051 + ... + 11178.

2^{1422656} is an apocalyptic number.

1422656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1422656 is a deficient number, since it is larger than the sum of its proper divisors (1400554).

1422656 is an equidigital number, since it uses as much as digits as its factorization.

1422656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22241 (or 22231 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 1422656 is about 1192.7514409968. The cubic root of 1422656 is about 112.4691207431.

Adding to 1422656 its reverse (6562241), we get a palindrome (7984897).

The spelling of 1422656 in words is "one million, four hundred twenty-two thousand, six hundred fifty-six".

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