64223124 has 72 divisors (see below), whose sum is σ = 175432320. Its totient is φ = 18232704.

The previous prime is 64223113. The next prime is 64223147. The reversal of 64223124 is 42132246.

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 = 64223094 and 64223103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 140304 + ... + 140760.

It is an arithmetic number, because the mean of its divisors is an integer number (2436560).

Almost surely, 2^64223124 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 64223124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87716160).

64223124 is an abundant number, since it is smaller than the sum of its proper divisors (111209196).

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

64223124 is a wasteful number, since it uses less digits than its factorization.

With its successor (64223125) it forms an eRAP, since the sums of their prime factors are consecutive (717 and 718).

64223124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717 (or 708 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 64223124 is about 8013.9331167661. The cubic root of 64223124 is about 400.4643025161.

The spelling of 64223124 in words is "sixty-four million, two hundred twenty-three thousand, one hundred twenty-four".