12054780 has 72 divisors (see below), whose sum is σ = 36861552. Its totient is φ = 3188736.

The previous prime is 12054773. The next prime is 12054793. The reversal of 12054780 is 8745021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34567 + ... + 34913.

It is an arithmetic number, because the mean of its divisors is an integer number (511966).

Almost surely, 2^12054780 is an apocalyptic number.

12054780 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 12054780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18430776).

12054780 is an abundant number, since it is smaller than the sum of its proper divisors (24806772).

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

12054780 is a wasteful number, since it uses less digits than its factorization.

12054780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 12054780 is about 3471.9994239631. Note that the first 3 decimals coincide. The cubic root of 12054780 is about 229.2906944420.

The spelling of 12054780 in words is "twelve million, fifty-four thousand, seven hundred eighty".