84278232 has 64 divisors (see below), whose sum is σ = 237045600. Its totient is φ = 28086912.

The previous prime is 84278221. The next prime is 84278239. The reversal of 84278232 is 23287248.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84278239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15088 + ... + 19904.

Almost surely, 2^84278232 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 84278232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118522800).

84278232 is an abundant number, since it is smaller than the sum of its proper divisors (152767368).

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

84278232 is an equidigital number, since it uses as much as digits as its factorization.

84278232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4844 (or 4822 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 84278232 is about 9180.3176415634. The cubic root of 84278232 is about 438.4349217169.

The spelling of 84278232 in words is "eighty-four million, two hundred seventy-eight thousand, two hundred thirty-two".