12940480 has 112 divisors (see below), whose sum is σ = 36210240. Its totient is φ = 4313088.

The previous prime is 12940469. The next prime is 12940493. The reversal of 12940480 is 8404921.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 118666 + ... + 118774.

Almost surely, 2^12940480 is an apocalyptic number.

12940480 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 12940480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18105120).

12940480 is an abundant number, since it is smaller than the sum of its proper divisors (23269760).

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

12940480 is a wasteful number, since it uses less digits than its factorization.

12940480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 12940480 is about 3597.2878672689. The cubic root of 12940480 is about 234.7740698670.

The spelling of 12940480 in words is "twelve million, nine hundred forty thousand, four hundred eighty".