1100898 has 64 divisors (see below), whose sum is σ = 2736000. Its totient is φ = 326592.

The previous prime is 1100893. The next prime is 1100899. The reversal of 1100898 is 8980011.

It is a Harshad number since it is a multiple of its sum of digits (27).

1100898 is a Rhonda number in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100893) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29736 + ... + 29772.

It is an arithmetic number, because the mean of its divisors is an integer number (42750).

2^1100898 is an apocalyptic number.

1100898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1100898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1368000).

1100898 is an abundant number, since it is smaller than the sum of its proper divisors (1635102).

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

1100898 is a wasteful number, since it uses less digits than its factorization.

1100898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The square root of 1100898 is about 1049.2368655361. The cubic root of 1100898 is about 103.2560944367.

The spelling of 1100898 in words is "one million, one hundred thousand, eight hundred ninety-eight".