1298822 has 16 divisors (see below), whose sum is σ = 2248992. Its totient is φ = 551040.

The previous prime is 1298819. The next prime is 1298831. The reversal of 1298822 is 2288921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1172 + ... + 1992.

It is an arithmetic number, because the mean of its divisors is an integer number (140562).

2^1298822 is an apocalyptic number.

1298822 is a deficient number, since it is larger than the sum of its proper divisors (950170).

1298822 is a wasteful number, since it uses less digits than its factorization.

1298822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943.

The product of its digits is 4608, while the sum is 32.

The square root of 1298822 is about 1139.6587208459. The cubic root of 1298822 is about 109.1063126818.

Subtracting 1298822 from its reverse (2288921), we obtain a palindrome (990099).

The spelling of 1298822 in words is "one million, two hundred ninety-eight thousand, eight hundred twenty-two".