22273776 has 120 divisors (see below), whose sum is σ = 75054720. Its totient is φ = 6023808.

The previous prime is 22273753. The next prime is 22273781. The reversal of 22273776 is 67737222.

It is a super-2 number, since 2×22273776² = 992242194596352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a self number, because there is not a number n which added to its sum of digits gives 22273776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18571 + ... + 19733.

It is an arithmetic number, because the mean of its divisors is an integer number (625456).

Almost surely, 2^22273776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22273776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37527360).

22273776 is an abundant number, since it is smaller than the sum of its proper divisors (52780944).

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

22273776 is a wasteful number, since it uses less digits than its factorization.

22273776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203 (or 1194 counting only the distinct ones).

The product of its digits is 49392, while the sum is 36.

The square root of 22273776 is about 4719.5101440722. The cubic root of 22273776 is about 281.3614645594.

It can be divided in two parts, 2 and 2273776, that added together give a triangular number (2273778 = T₂₁₃₂).

The spelling of 22273776 in words is "twenty-two million, two hundred seventy-three thousand, seven hundred seventy-six".