22426712 has 64 divisors (see below), whose sum is σ = 53568000. Its totient is φ = 8725920.

The previous prime is 22426687. The next prime is 22426721. The reversal of 22426712 is 21762422.

It is a super-2 number, since 2×22426712² = 1005914822261888, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 29813 + ... + 30555.

It is an arithmetic number, because the mean of its divisors is an integer number (837000).

Almost surely, 2^22426712 is an apocalyptic number.

22426712 is a gapful number since it is divisible by the number (22) 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 22426712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26784000).

22426712 is an abundant number, since it is smaller than the sum of its proper divisors (31141288).

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

22426712 is a wasteful number, since it uses less digits than its factorization.

22426712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781 (or 763 counting only the distinct ones).

The product of its digits is 2688, while the sum is 26.

The square root of 22426712 is about 4735.6849557377. The cubic root of 22426712 is about 282.0039568212.

The spelling of 22426712 in words is "twenty-two million, four hundred twenty-six thousand, seven hundred twelve".