82437540 has 24 divisors (see below), whose sum is σ = 230825280. Its totient is φ = 21983328.

The previous prime is 82437533. The next prime is 82437611. The reversal of 82437540 is 4573428.

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, 686920 + ... + 687039.

It is an arithmetic number, because the mean of its divisors is an integer number (9617720).

Almost surely, 2^82437540 is an apocalyptic number.

It is an amenable number.

82437540 is an abundant number, since it is smaller than the sum of its proper divisors (148387740).

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

82437540 is a wasteful number, since it uses less digits than its factorization.

82437540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373971 (or 1373969 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 82437540 is about 9079.5121014292. The cubic root of 82437540 is about 435.2194955155.

The spelling of 82437540 in words is "eighty-two million, four hundred thirty-seven thousand, five hundred forty".