12040878 has 8 divisors (see below), whose sum is σ = 24081768. Its totient is φ = 4013624.

The previous prime is 12040877. The next prime is 12040907. The reversal of 12040878 is 87804021.

It is a sphenic number, since it is the product of 3 distinct primes.

12040878 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040871) 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, 1003401 + ... + 1003412.

It is an arithmetic number, because the mean of its divisors is an integer number (3010221).

Almost surely, 2^12040878 is an apocalyptic number.

12040878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12040878 is a wasteful number, since it uses less digits than its factorization.

12040878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2006818.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 12040878 is about 3469.9968299697. The cubic root of 12040878 is about 229.2025184827.

Adding to 12040878 its reverse (87804021), we get a palindrome (99844899).

The spelling of 12040878 in words is "twelve million, forty thousand, eight hundred seventy-eight".