181098828 has 30 divisors (see below), whose sum is σ = 473428956. Its totient is φ = 60366168.

The previous prime is 181098817. The next prime is 181098829. The reversal of 181098828 is 828890181.

181098828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (181098829) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 279150 + ... + 279797.

Almost surely, 2^181098828 is an apocalyptic number.

181098828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

181098828 is an abundant number, since it is smaller than the sum of its proper divisors (292330128).

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

181098828 is a wasteful number, since it uses less digits than its factorization.

181098828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558963 (or 558952 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 45.

The square root of 181098828 is about 13457.2964595419. The cubic root of 181098828 is about 565.7682170150.

The spelling of 181098828 in words is "one hundred eighty-one million, ninety-eight thousand, eight hundred twenty-eight".