63223140 has 48 divisors (see below), whose sum is σ = 178440192. Its totient is φ = 16724736.

The previous prime is 63223129. The next prime is 63223141. The reversal of 63223140 is 4132236.

It is a happy number.

63223140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (63223141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3472 + ... + 11768.

It is an arithmetic number, because the mean of its divisors is an integer number (3717504).

Almost surely, 2^63223140 is an apocalyptic number.

63223140 is a gapful number since it is divisible by the number (60) 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 63223140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89220096).

63223140 is an abundant number, since it is smaller than the sum of its proper divisors (115217052).

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

63223140 is a wasteful number, since it uses less digits than its factorization.

63223140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8436 (or 8434 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 63223140 is about 7951.2980072438. The cubic root of 63223140 is about 398.3749486272.

Adding to 63223140 its reverse (4132236), we get a palindrome (67355376).

The spelling of 63223140 in words is "sixty-three million, two hundred twenty-three thousand, one hundred forty".