105949218 has 8 divisors (see below), whose sum is σ = 211898448. Its totient is φ = 35316404.

The previous prime is 105949213. The next prime is 105949223. The reversal of 105949218 is 812949501.

It is an interprime number because it is at equal distance from previous prime (105949213) and next prime (105949223).

It is a sphenic number, since it is the product of 3 distinct primes.

105949218 is an admirable number.

It is a super-2 number, since 2×105949218² = 22450473589623048, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (105949211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8829096 + ... + 8829107.

It is an arithmetic number, because the mean of its divisors is an integer number (26487306).

Almost surely, 2^105949218 is an apocalyptic number.

105949218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

105949218 is a wasteful number, since it uses less digits than its factorization.

105949218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17658208.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 105949218 is about 10293.1636536101. The cubic root of 105949218 is about 473.1867609165.

The spelling of 105949218 in words is "one hundred five million, nine hundred forty-nine thousand, two hundred eighteen".