11828405 has 4 divisors (see below), whose sum is σ = 14194092. Its totient is φ = 9462720.

The previous prime is 11828357. The next prime is 11828407. The reversal of 11828405 is 50482811.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5058001 + 6770404 = 2249^2 + 2602^2 .

It is not a de Polignac number, because 11828405 - 2¹⁶ = 11762869 is a prime.

It is a super-2 number, since 2×11828405² = 279822329688050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11828407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1182836 + ... + 1182845.

It is an arithmetic number, because the mean of its divisors is an integer number (3548523).

Almost surely, 2^11828405 is an apocalyptic number.

It is an amenable number.

11828405 is a deficient number, since it is larger than the sum of its proper divisors (2365687).

11828405 is an equidigital number, since it uses as much as digits as its factorization.

11828405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2365686.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 11828405 is about 3439.2448299009. The cubic root of 11828405 is about 227.8463428108.

The spelling of 11828405 in words is "eleven million, eight hundred twenty-eight thousand, four hundred five".