83288540 has 12 divisors (see below), whose sum is σ = 174905976. Its totient is φ = 33315408.

The previous prime is 83288519. The next prime is 83288563. The reversal of 83288540 is 4588238.

It is a super-3 number, since 3×83288540³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 83288494 and 83288503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2082194 + ... + 2082233.

It is an arithmetic number, because the mean of its divisors is an integer number (14575498).

Almost surely, 2^83288540 is an apocalyptic number.

It is an amenable number.

83288540 is an abundant number, since it is smaller than the sum of its proper divisors (91617436).

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

83288540 is a wasteful number, since it uses less digits than its factorization.

83288540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4164436 (or 4164434 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 83288540 is about 9126.2555300627. The cubic root of 83288540 is about 436.7119571797.

The spelling of 83288540 in words is "eighty-three million, two hundred eighty-eight thousand, five hundred forty".