12478722 has 8 divisors (see below), whose sum is σ = 24957456. Its totient is φ = 4159572.

The previous prime is 12478721. The next prime is 12478723. The reversal of 12478722 is 22787421.

It is an interprime number because it is at equal distance from previous prime (12478721) and next prime (12478723).

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

12478722 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (12478721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1039888 + ... + 1039899.

It is an arithmetic number, because the mean of its divisors is an integer number (3119682).

Almost surely, 2^12478722 is an apocalyptic number.

12478722 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.

12478722 is a wasteful number, since it uses less digits than its factorization.

12478722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2079792.

The product of its digits is 12544, while the sum is 33.

The square root of 12478722 is about 3532.5234606440. The cubic root of 12478722 is about 231.9476819205.

The spelling of 12478722 in words is "twelve million, four hundred seventy-eight thousand, seven hundred twenty-two".