82998540 has 48 divisors (see below), whose sum is σ = 258219360. Its totient is φ = 22132800.

The previous prime is 82998529. The next prime is 82998599. The reversal of 82998540 is 4589928.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76311 + ... + 77390.

It is an arithmetic number, because the mean of its divisors is an integer number (5379570).

Almost surely, 2^82998540 is an apocalyptic number.

It is an amenable number.

82998540 is an abundant number, since it is smaller than the sum of its proper divisors (175220820).

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

82998540 is a wasteful number, since it uses less digits than its factorization.

82998540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153719 (or 153711 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 82998540 is about 9110.3534508821. The cubic root of 82998540 is about 436.2045094505.

It can be divided in two parts, 82998 and 540, that added together give a palindrome (83538).

The spelling of 82998540 in words is "eighty-two million, nine hundred ninety-eight thousand, five hundred forty".