1122398 has 4 divisors (see below), whose sum is σ = 1683600. Its totient is φ = 561198.

The previous prime is 1122397. The next prime is 1122419. The reversal of 1122398 is 8932211.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280598 + ... + 280601.

It is an arithmetic number, because the mean of its divisors is an integer number (420900).

2^1122398 is an apocalyptic number.

1122398 is a deficient number, since it is larger than the sum of its proper divisors (561202).

1122398 is an equidigital number, since it uses as much as digits as its factorization.

1122398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561201.

The product of its digits is 864, while the sum is 26.

The square root of 1122398 is about 1059.4328671511. The cubic root of 1122398 is about 103.9239458753.

The spelling of 1122398 in words is "one million, one hundred twenty-two thousand, three hundred ninety-eight".