105718420 has 12 divisors (see below), whose sum is σ = 222008724. Its totient is φ = 42287360.

The previous prime is 105718399. The next prime is 105718453. The reversal of 105718420 is 24817501.

It can be written as a sum of positive squares in 2 ways, for example, as 61999876 + 43718544 = 7874^2 + 6612^2 .

It is a super-2 number, since 2×105718420² = 22352768654592800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2642941 + ... + 2642980.

It is an arithmetic number, because the mean of its divisors is an integer number (18500727).

Almost surely, 2^105718420 is an apocalyptic number.

105718420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105718420 is an abundant number, since it is smaller than the sum of its proper divisors (116290304).

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

105718420 is a wasteful number, since it uses less digits than its factorization.

105718420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5285930 (or 5285928 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 105718420 is about 10281.9463138065. The cubic root of 105718420 is about 472.8429170857.

The spelling of 105718420 in words is "one hundred five million, seven hundred eighteen thousand, four hundred twenty".