105840620 has 12 divisors (see below), whose sum is σ = 222265344. Its totient is φ = 42336240.

The previous prime is 105840619. The next prime is 105840643. The reversal of 105840620 is 26048501.

It is a super-2 number, since 2×105840620² = 22404473683968800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105840620.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2645996 + ... + 2646035.

It is an arithmetic number, because the mean of its divisors is an integer number (18522112).

Almost surely, 2^105840620 is an apocalyptic number.

105840620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105840620 is an abundant number, since it is smaller than the sum of its proper divisors (116424724).

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

105840620 is a wasteful number, since it uses less digits than its factorization.

105840620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5292040 (or 5292038 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 105840620 is about 10287.8870522571. The cubic root of 105840620 is about 473.0250334270.

The spelling of 105840620 in words is "one hundred five million, eight hundred forty thousand, six hundred twenty".