10405845 has 12 divisors (see below), whose sum is σ = 18036876. Its totient is φ = 5549760.

The previous prime is 10405799. The next prime is 10405873. The reversal of 10405845 is 54850401.

It can be written as a sum of positive squares in 2 ways, for example, as 7800849 + 2604996 = 2793^2 + 1614^2 .

It is not a de Polignac number, because 10405845 - 2⁸ = 10405589 is a prime.

It is a super-2 number, since 2×10405845² = 216563220328050, which contains 22 as substring.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115576 + ... + 115665.

It is an arithmetic number, because the mean of its divisors is an integer number (1503073).

Almost surely, 2^10405845 is an apocalyptic number.

10405845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10405845 is a deficient number, since it is larger than the sum of its proper divisors (7631031).

10405845 is a wasteful number, since it uses less digits than its factorization.

10405845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231252 (or 231249 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 10405845 is about 3225.8092008053. The cubic root of 10405845 is about 218.3194612064.

The spelling of 10405845 in words is "ten million, four hundred five thousand, eight hundred forty-five".