63522340 has 48 divisors (see below), whose sum is σ = 156586752. Its totient is φ = 21188736.

The previous prime is 63522331. The next prime is 63522367. The reversal of 63522340 is 4322536.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 952 + ... + 11311.

It is an arithmetic number, because the mean of its divisors is an integer number (3262224).

Almost surely, 2^63522340 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 63522340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78293376).

63522340 is an abundant number, since it is smaller than the sum of its proper divisors (93064412).

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

63522340 is a wasteful number, since it uses less digits than its factorization.

63522340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12316 (or 12314 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 63522340 is about 7970.0903382584. The cubic root of 63522340 is about 399.0023889992.

Adding to 63522340 its reverse (4322536), we get a palindrome (67844876).

The spelling of 63522340 in words is "sixty-three million, five hundred twenty-two thousand, three hundred forty".