10405818 has 24 divisors (see below), whose sum is σ = 22713600. Its totient is φ = 3442824.

The previous prime is 10405799. The next prime is 10405873. The reversal of 10405818 is 81850401.

It is a junction number, because it is equal to n+sod(n) for n = 10405791 and 10405800.

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, 423 + ... + 4581.

It is an arithmetic number, because the mean of its divisors is an integer number (946400).

Almost surely, 2^10405818 is an apocalyptic number.

10405818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10405818 is an abundant number, since it is smaller than the sum of its proper divisors (12307782).

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

10405818 is a wasteful number, since it uses less digits than its factorization.

10405818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4306 (or 4303 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 10405818 is about 3225.8050158061. The cubic root of 10405818 is about 218.3192723821.

The spelling of 10405818 in words is "ten million, four hundred five thousand, eight hundred eighteen".