12722448 has 40 divisors (see below), whose sum is σ = 33033600. Its totient is φ = 4219264.

The previous prime is 12722447. The next prime is 12722459. The reversal of 12722448 is 84422721.

It is a super-2 number, since 2×12722448² = 323721366225408, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (12722447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10918 + ... + 12026.

It is an arithmetic number, because the mean of its divisors is an integer number (825840).

Almost surely, 2^12722448 is an apocalyptic number.

It is an amenable number.

12722448 is an abundant number, since it is smaller than the sum of its proper divisors (20311152).

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

12722448 is a wasteful number, since it uses less digits than its factorization.

12722448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359 (or 1353 counting only the distinct ones).

The product of its digits is 7168, while the sum is 30.

The square root of 12722448 is about 3566.8540760732. The cubic root of 12722448 is about 233.4480379341.

The spelling of 12722448 in words is "twelve million, seven hundred twenty-two thousand, four hundred forty-eight".