22686976 has 72 divisors (see below), whose sum is σ = 51766344. Its totient is φ = 9830400.

The previous prime is 22686967. The next prime is 22686991. The reversal of 22686976 is 67968622.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9144576 + 13542400 = 3024^2 + 3680^2 .

It is a super-3 number, since 3×22686976³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56376 + ... + 56776.

It is an arithmetic number, because the mean of its divisors is an integer number (718977).

Almost surely, 2^22686976 is an apocalyptic number.

22686976 is a gapful number since it is divisible by the number (26) 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 22686976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25883172).

22686976 is an abundant number, since it is smaller than the sum of its proper divisors (29079368).

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

22686976 is a wasteful number, since it uses less digits than its factorization.

22686976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447 (or 433 counting only the distinct ones).

The product of its digits is 435456, while the sum is 46.

The square root of 22686976 is about 4763.0847147621. The cubic root of 22686976 is about 283.0906575664.

The spelling of 22686976 in words is "twenty-two million, six hundred eighty-six thousand, nine hundred seventy-six".