83333240 has 96 divisors (see below), whose sum is σ = 205740000. Its totient is φ = 30336768.

The previous prime is 83333233. The next prime is 83333291. The reversal of 83333240 is 4233338.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 418661 + ... + 418859.

It is an arithmetic number, because the mean of its divisors is an integer number (2143125).

Almost surely, 2^83333240 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 83333240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102870000).

83333240 is an abundant number, since it is smaller than the sum of its proper divisors (122406760).

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

83333240 is a wasteful number, since it uses less digits than its factorization.

83333240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 83333240 is about 9128.7041796741. The cubic root of 83333240 is about 436.7900692997.

Adding to 83333240 its reverse (4233338), we get a palindrome (87566578).

The spelling of 83333240 in words is "eighty-three million, three hundred thirty-three thousand, two hundred forty".