109289466 has 64 divisors (see below), whose sum is σ = 285344640. Its totient is φ = 30568320.

The previous prime is 109289431. The next prime is 109289471. The reversal of 109289466 is 664982901.

It is a happy number.

109289466 is a `hidden beast` number, since 109 + 2 + 89 + 466 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 646 + ... + 14798.

It is an arithmetic number, because the mean of its divisors is an integer number (4458510).

Almost surely, 2^109289466 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109289466, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142672320).

109289466 is an abundant number, since it is smaller than the sum of its proper divisors (176055174).

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

109289466 is a wasteful number, since it uses less digits than its factorization.

109289466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14188 (or 14182 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 109289466 is about 10454.1602245231. The cubic root of 109289466 is about 478.1080998256.

The spelling of 109289466 in words is "one hundred nine million, two hundred eighty-nine thousand, four hundred sixty-six".