11954478 has 16 divisors (see below), whose sum is σ = 24555600. Its totient is φ = 3877056.

The previous prime is 11954447. The next prime is 11954479. The reversal of 11954478 is 87445911.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11954479) 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 7 ways as a sum of consecutive naturals, for example, 26703 + ... + 27146.

It is an arithmetic number, because the mean of its divisors is an integer number (1534725).

Almost surely, 2^11954478 is an apocalyptic number.

11954478 is an abundant number, since it is smaller than the sum of its proper divisors (12601122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11954478 is a wasteful number, since it uses less digits than its factorization.

11954478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53891.

The product of its digits is 40320, while the sum is 39.

The square root of 11954478 is about 3457.5248372210. The cubic root of 11954478 is about 228.6529834348.

The spelling of 11954478 in words is "eleven million, nine hundred fifty-four thousand, four hundred seventy-eight".