109998858 has 16 divisors (see below), whose sum is σ = 223282080. Its totient is φ = 36118896.

The previous prime is 109998853. The next prime is 109998871. The reversal of 109998858 is 858899901.

It is a super-2 number, since 2×109998858² = 24199497522608328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 109998798 and 109998807.

It is not an unprimeable number, because it can be changed into a prime (109998853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136413 + ... + 137216.

It is an arithmetic number, because the mean of its divisors is an integer number (13955130).

Almost surely, 2^109998858 is an apocalyptic number.

109998858 is an abundant number, since it is smaller than the sum of its proper divisors (113283222).

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

109998858 is a wasteful number, since it uses less digits than its factorization.

109998858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273701.

The product of its (nonzero) digits is 1866240, while the sum is 57.

The square root of 109998858 is about 10488.0340388464. The cubic root of 109998858 is about 479.1403275789.

The spelling of 109998858 in words is "one hundred nine million, nine hundred ninety-eight thousand, eight hundred fifty-eight".