84132280 has 16 divisors (see below), whose sum is σ = 189297720. Its totient is φ = 33652896.

The previous prime is 84132263. The next prime is 84132299. The reversal of 84132280 is 8223148.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051614 + ... + 1051693.

Almost surely, 2^84132280 is an apocalyptic number.

It is an amenable number.

84132280 is an abundant number, since it is smaller than the sum of its proper divisors (105165440).

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

84132280 is a wasteful number, since it uses less digits than its factorization.

84132280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103318 (or 2103314 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 84132280 is about 9172.3650167228. The cubic root of 84132280 is about 438.1816834170.

The spelling of 84132280 in words is "eighty-four million, one hundred thirty-two thousand, two hundred eighty".