1422819 has 8 divisors (see below), whose sum is σ = 2107920. Its totient is φ = 948528.

The previous prime is 1422797. The next prime is 1422821. The reversal of 1422819 is 9182241.

It is not a de Polignac number, because 1422819 - 2⁷ = 1422691 is a prime.

It is a super-2 number, since 2×1422819² = 4048827813522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 52697 = 1422819 / (1 + 4 + 2 + 2 + 8 + 1 + 9).

It is a junction number, because it is equal to n+sod(n) for n = 1422792 and 1422801.

It is not an unprimeable number, because it can be changed into a prime (1422899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26322 + ... + 26375.

It is an arithmetic number, because the mean of its divisors is an integer number (263490).

2^1422819 is an apocalyptic number.

1422819 is a deficient number, since it is larger than the sum of its proper divisors (685101).

1422819 is an equidigital number, since it uses as much as digits as its factorization.

1422819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52706 (or 52700 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 1422819 is about 1192.8197684479. The cubic root of 1422819 is about 112.4734159408.

The spelling of 1422819 in words is "one million, four hundred twenty-two thousand, eight hundred nineteen".