11405830 has 16 divisors (see below), whose sum is σ = 21193344. Its totient is φ = 4415040.

The previous prime is 11405809. The next prime is 11405837. The reversal of 11405830 is 3850411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11405837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18087 + ... + 18706.

It is an arithmetic number, because the mean of its divisors is an integer number (1324584).

Almost surely, 2^11405830 is an apocalyptic number.

11405830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11405830 is a deficient number, since it is larger than the sum of its proper divisors (9787514).

11405830 is a wasteful number, since it uses less digits than its factorization.

11405830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36831.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 11405830 is about 3377.2518413645. The cubic root of 11405830 is about 225.1000707124.

The spelling of 11405830 in words is "eleven million, four hundred five thousand, eight hundred thirty".