1422816 has 24 divisors (see below), whose sum is σ = 3735144. Its totient is φ = 474240.

The previous prime is 1422797. The next prime is 1422821. The reversal of 1422816 is 6182241.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 7315 + ... + 7506.

It is an arithmetic number, because the mean of its divisors is an integer number (155631).

2^1422816 is an apocalyptic number.

1422816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1422816 is an abundant number, since it is smaller than the sum of its proper divisors (2312328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1422816 is a wasteful number, since it uses less digits than its factorization.

1422816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14834 (or 14826 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 1422816 is about 1192.8185109228. The cubic root of 1422816 is about 112.4733368911.

The spelling of 1422816 in words is "one million, four hundred twenty-two thousand, eight hundred sixteen".