1822899 has 16 divisors (see below), whose sum is σ = 2680832. Its totient is φ = 1094688.

The previous prime is 1822871. The next prime is 1822903. The reversal of 1822899 is 9982281.

It is not a de Polignac number, because 1822899 - 2⁵ = 1822867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1822999) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1134 + ... + 2220.

It is an arithmetic number, because the mean of its divisors is an integer number (167552).

2^1822899 is an apocalyptic number.

1822899 is a deficient number, since it is larger than the sum of its proper divisors (857933).

1822899 is a wasteful number, since it uses less digits than its factorization.

1822899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146.

The product of its digits is 20736, while the sum is 39.

The square root of 1822899 is about 1350.1477696904. The cubic root of 1822899 is about 122.1577061097.

It can be divided in two parts, 182 and 2899, that added together give a triangular number (3081 = T₇₈).

The spelling of 1822899 in words is "one million, eight hundred twenty-two thousand, eight hundred ninety-nine".