83319240 has 32 divisors (see below), whose sum is σ = 249958080. Its totient is φ = 22218432.

The previous prime is 83319209. The next prime is 83319259. The reversal of 83319240 is 4291338.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 83319198 and 83319207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347044 + ... + 347283.

It is an arithmetic number, because the mean of its divisors is an integer number (7811190).

Almost surely, 2^83319240 is an apocalyptic number.

It is an amenable number.

83319240 is an abundant number, since it is smaller than the sum of its proper divisors (166638840).

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

83319240 is a wasteful number, since it uses less digits than its factorization.

83319240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694341 (or 694337 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 83319240 is about 9127.9373354554. The cubic root of 83319240 is about 436.7656076586.

It can be divided in two parts, 8331 and 9240, that added together give a palindrome (17571).

The spelling of 83319240 in words is "eighty-three million, three hundred nineteen thousand, two hundred forty".