12622722 has 64 divisors (see below), whose sum is σ = 30689280. Its totient is φ = 3383424.

The previous prime is 12622681. The next prime is 12622739. The reversal of 12622722 is 22722621.

It is a super-2 number, since 2×12622722² = 318666221378568, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12622692 and 12622701.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70429 + ... + 70607.

It is an arithmetic number, because the mean of its divisors is an integer number (479520).

Almost surely, 2^12622722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12622722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15344640).

12622722 is an abundant number, since it is smaller than the sum of its proper divisors (18066558).

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

12622722 is a wasteful number, since it uses less digits than its factorization.

12622722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287.

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

The square root of 12622722 is about 3552.8470273852. The cubic root of 12622722 is about 232.8364697060.

The spelling of 12622722 in words is "twelve million, six hundred twenty-two thousand, seven hundred twenty-two".