11954409 has 16 divisors (see below), whose sum is σ = 16579200. Its totient is φ = 7652736.

The previous prime is 11954399. The next prime is 11954429. The reversal of 11954409 is 90445911.

It is not a de Polignac number, because 11954409 - 2⁹ = 11953897 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11954409.

It is not an unprimeable number, because it can be changed into a prime (11954429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27012 + ... + 27450.

It is an arithmetic number, because the mean of its divisors is an integer number (1036200).

Almost surely, 2^11954409 is an apocalyptic number.

It is an amenable number.

11954409 is a deficient number, since it is larger than the sum of its proper divisors (4624791).

11954409 is a wasteful number, since it uses less digits than its factorization.

11954409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 11954409 is about 3457.5148589702. The cubic root of 11954409 is about 228.6525435135.

The spelling of 11954409 in words is "eleven million, nine hundred fifty-four thousand, four hundred nine".