83059240 has 72 divisors (see below), whose sum is σ = 206997210. Its totient is φ = 29972800.

The previous prime is 83059231. The next prime is 83059243. The reversal of 83059240 is 4295038.

It can be written as a sum of positive squares in only one way, i.e., 74753316 + 8305924 = 8646^2 + 2882^2 .

It is not an unprimeable number, because it can be changed into a prime (83059243) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 633975 + ... + 634105.

Almost surely, 2^83059240 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 83059240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103498605).

83059240 is an abundant number, since it is smaller than the sum of its proper divisors (123937970).

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

83059240 is a wasteful number, since it uses less digits than its factorization.

83059240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 83059240 is about 9113.6842166053. The cubic root of 83059240 is about 436.3108212067.

The spelling of 83059240 in words is "eighty-three million, fifty-nine thousand, two hundred forty".