11478438 has 12 divisors (see below), whose sum is σ = 24869988. Its totient is φ = 3826140.

The previous prime is 11478433. The next prime is 11478443. The reversal of 11478438 is 83487411.

It is an interprime number because it is at equal distance from previous prime (11478433) and next prime (11478443).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11478433) 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 5 ways as a sum of consecutive naturals, for example, 318828 + ... + 318863.

It is an arithmetic number, because the mean of its divisors is an integer number (2072499).

Almost surely, 2^11478438 is an apocalyptic number.

11478438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11478438 is an abundant number, since it is smaller than the sum of its proper divisors (13391550).

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

11478438 is a wasteful number, since it uses less digits than its factorization.

11478438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637699 (or 637696 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 11478438 is about 3387.9843565164. The cubic root of 11478438 is about 225.5767131162.

The spelling of 11478438 in words is "eleven million, four hundred seventy-eight thousand, four hundred thirty-eight".