83522240 has 56 divisors (see below), whose sum is σ = 199991472. Its totient is φ = 33223680.

The previous prime is 83522239. The next prime is 83522249. The reversal of 83522240 is 4222538.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83522249) 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 7 ways as a sum of consecutive naturals, for example, 66902 + ... + 68138.

Almost surely, 2^83522240 is an apocalyptic number.

83522240 is a gapful number since it is divisible by the number (80) 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 83522240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99995736).

83522240 is an abundant number, since it is smaller than the sum of its proper divisors (116469232).

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

83522240 is a wasteful number, since it uses less digits than its factorization.

83522240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1465 (or 1455 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 83522240 is about 9139.0502788857. The cubic root of 83522240 is about 437.1200336342.

Adding to 83522240 its reverse (4222538), we get a palindrome (87744778).

The spelling of 83522240 in words is "eighty-three million, five hundred twenty-two thousand, two hundred forty".