63222768 has 240 divisors, whose sum is σ = 220985856. Its totient is φ = 17107200.

The previous prime is 63222767. The next prime is 63222787. The reversal of 63222768 is 86722236.

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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (63222767) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 625918 + ... + 626018.

Almost surely, 2^63222768 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 63222768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110492928).

63222768 is an abundant number, since it is smaller than the sum of its proper divisors (157763088).

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

63222768 is a wasteful number, since it uses less digits than its factorization.

63222768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 136 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 63222768 is about 7951.2746148023. The cubic root of 63222768 is about 398.3741672900.

The spelling of 63222768 in words is "sixty-three million, two hundred twenty-two thousand, seven hundred sixty-eight".