64222824 has 64 divisors (see below), whose sum is σ = 170288640. Its totient is φ = 20148480.

The previous prime is 64222811. The next prime is 64222843. The reversal of 64222824 is 42822246.

It is a super-2 number, since 2×64222824² = 8249142245069952, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

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 = 64222791 and 64222800.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26362 + ... + 28694.

It is an arithmetic number, because the mean of its divisors is an integer number (2660760).

Almost surely, 2^64222824 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 64222824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85144320).

64222824 is an abundant number, since it is smaller than the sum of its proper divisors (106065816).

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

64222824 is a wasteful number, since it uses less digits than its factorization.

64222824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2410 (or 2406 counting only the distinct ones).

The product of its digits is 12288, while the sum is 30.

The square root of 64222824 is about 8013.9143993432. The cubic root of 64222824 is about 400.4636789635.

The spelling of 64222824 in words is "sixty-four million, two hundred twenty-two thousand, eight hundred twenty-four".