742105 has 24 divisors (see below), whose sum is σ = 1120392. Its totient is φ = 467712.

The previous prime is 742073. The next prime is 742111. The reversal of 742105 is 501247.

It can be written as a sum of positive squares in 4 ways, for example, as 784 + 741321 = 28^2 + 861^2 .

It is not a de Polignac number, because 742105 - 2⁵ = 742073 is a prime.

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 23 ways as a sum of consecutive naturals, for example, 3069 + ... + 3301.

It is an arithmetic number, because the mean of its divisors is an integer number (46683).

2⁷⁴²¹⁰⁵ is an apocalyptic number.

It is an amenable number.

742105 is a deficient number, since it is larger than the sum of its proper divisors (378287).

742105 is a wasteful number, since it uses less digits than its factorization.

742105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 742105 is about 861.4551642425. The cubic root of 742105 is about 90.5361006936.

The spelling of 742105 in words is "seven hundred forty-two thousand, one hundred five".