1128398 has 8 divisors (see below), whose sum is σ = 1697808. Its totient is φ = 562464.

The previous prime is 1128397. The next prime is 1128427. The reversal of 1128398 is 8938211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215 + ... + 1517.

It is an arithmetic number, because the mean of its divisors is an integer number (212226).

2^1128398 is an apocalyptic number.

1128398 is a deficient number, since it is larger than the sum of its proper divisors (569410).

1128398 is a wasteful number, since it uses less digits than its factorization.

1128398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1738.

The product of its digits is 3456, while the sum is 32.

The square root of 1128398 is about 1062.2607966032. The cubic root of 1128398 is about 104.1087988630.

The spelling of 1128398 in words is "one million, one hundred twenty-eight thousand, three hundred ninety-eight".