1023198 has 32 divisors (see below), whose sum is σ = 2298240. Its totient is φ = 300960.

The previous prime is 1023173. The next prime is 1023199. The reversal of 1023198 is 8913201.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023199) 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, 2233 + ... + 2651.

It is an arithmetic number, because the mean of its divisors is an integer number (71820).

2^1023198 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1023198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1149120).

1023198 is an abundant number, since it is smaller than the sum of its proper divisors (1275042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1023198 is a wasteful number, since it uses less digits than its factorization.

1023198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1023198 is about 1011.5325007136. The cubic root of 1023198 is about 100.7673631428.

Adding to 1023198 its reverse (8913201), we get a palindrome (9936399).

It can be divided in two parts, 1023 and 198, that added together give a palindrome (1221).

The spelling of 1023198 in words is "one million, twenty-three thousand, one hundred ninety-eight".