12722406 has 32 divisors (see below), whose sum is σ = 26248320. Its totient is φ = 4109184.

The previous prime is 12722393. The next prime is 12722417. The reversal of 12722406 is 60422721.

It is a super-2 number, since 2×12722406² = 323719228857672, which contains 22 as substring.

It is a congruent number.

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, 29166 + ... + 29598.

It is an arithmetic number, because the mean of its divisors is an integer number (820260).

Almost surely, 2^12722406 is an apocalyptic number.

12722406 is an abundant number, since it is smaller than the sum of its proper divisors (13525914).

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

12722406 is a wasteful number, since it uses less digits than its factorization.

12722406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 12722406 is about 3566.8481885272. The cubic root of 12722406 is about 233.4477810436.

The spelling of 12722406 in words is "twelve million, seven hundred twenty-two thousand, four hundred six".