10780405 has 16 divisors (see below), whose sum is σ = 13469184. Its totient is φ = 8274240.

The previous prime is 10780403. The next prime is 10780433. The reversal of 10780405 is 50408701.

It is not a de Polignac number, because 10780405 - 2¹ = 10780403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10780405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10780403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24114 + ... + 24556.

It is an arithmetic number, because the mean of its divisors is an integer number (841824).

Almost surely, 2^10780405 is an apocalyptic number.

It is an amenable number.

10780405 is a deficient number, since it is larger than the sum of its proper divisors (2688779).

10780405 is a wasteful number, since it uses less digits than its factorization.

10780405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 10780405 is about 3283.3527072186. The cubic root of 10780405 is about 220.9081264003.

The spelling of 10780405 in words is "ten million, seven hundred eighty thousand, four hundred five".