11730405 has 16 divisors (see below), whose sum is σ = 18812160. Its totient is φ = 6241728.

The previous prime is 11730377. The next prime is 11730409. The reversal of 11730405 is 50403711.

11730405 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11730405 - 2⁵ = 11730373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11730409) 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, 10084 + ... + 11186.

It is an arithmetic number, because the mean of its divisors is an integer number (1175760).

Almost surely, 2^11730405 is an apocalyptic number.

11730405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11730405 is a deficient number, since it is larger than the sum of its proper divisors (7081755).

11730405 is a wasteful number, since it uses less digits than its factorization.

11730405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 11730405 is about 3424.9678830611. The cubic root of 11730405 is about 227.2153506312.

The spelling of 11730405 in words is "eleven million, seven hundred thirty thousand, four hundred five".