12078480 has 80 divisors (see below), whose sum is σ = 38122560. Its totient is φ = 3162624.

The previous prime is 12078467. The next prime is 12078491. The reversal of 12078480 is 8487021.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×12078480² = 291779358220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13734 + ... + 14586.

It is an arithmetic number, because the mean of its divisors is an integer number (476532).

Almost surely, 2^12078480 is an apocalyptic number.

12078480 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 12078480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19061280).

12078480 is an abundant number, since it is smaller than the sum of its proper divisors (26044080).

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

12078480 is a wasteful number, since it uses less digits than its factorization.

12078480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928 (or 922 counting only the distinct ones).

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

The square root of 12078480 is about 3475.4107670893. The cubic root of 12078480 is about 229.4408598284.

The spelling of 12078480 in words is "twelve million, seventy-eight thousand, four hundred eighty".