12054840 has 128 divisors (see below), whose sum is σ = 42024960. Its totient is φ = 2709504.

The previous prime is 12054839. The next prime is 12054851. The reversal of 12054840 is 4845021.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 12054840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 94857 + ... + 94983.

It is an arithmetic number, because the mean of its divisors is an integer number (328320).

Almost surely, 2^12054840 is an apocalyptic number.

12054840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12054840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21012480).

12054840 is an abundant number, since it is smaller than the sum of its proper divisors (29970120).

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

12054840 is a wasteful number, since it uses less digits than its factorization.

12054840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 12054840 is about 3472.0080645068. The cubic root of 12054840 is about 229.2910748559.

Adding to 12054840 its reverse (4845021), we get a palindrome (16899861).

The spelling of 12054840 in words is "twelve million, fifty-four thousand, eight hundred forty".