83318340 has 48 divisors (see below), whose sum is σ = 266620032. Its totient is φ = 19044096.

The previous prime is 83318311. The next prime is 83318341. The reversal of 83318340 is 4381338.

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 = 83318298 and 83318307.

It is not an unprimeable number, because it can be changed into a prime (83318341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98769 + ... + 99608.

It is an arithmetic number, because the mean of its divisors is an integer number (5554584).

Almost surely, 2^83318340 is an apocalyptic number.

It is an amenable number.

83318340 is an abundant number, since it is smaller than the sum of its proper divisors (183301692).

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

83318340 is a wasteful number, since it uses less digits than its factorization.

83318340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198396 (or 198394 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 83318340 is about 9127.8880361231. Note that the first 3 decimals coincide. The cubic root of 83318340 is about 436.7640350307.

Adding to 83318340 its reverse (4381338), we get a palindrome (87699678).

The spelling of 83318340 in words is "eighty-three million, three hundred eighteen thousand, three hundred forty".