84239244 has 24 divisors (see below), whose sum is σ = 218398320. Its totient is φ = 28079712.

The previous prime is 84239237. The next prime is 84239249. The reversal of 84239244 is 44293248.

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

It is a junction number, because it is equal to n+sod(n) for n = 84239199 and 84239208.

It is not an unprimeable number, because it can be changed into a prime (84239249) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 389889 + ... + 390104.

It is an arithmetic number, because the mean of its divisors is an integer number (9099930).

Almost surely, 2^84239244 is an apocalyptic number.

It is an amenable number.

84239244 is an abundant number, since it is smaller than the sum of its proper divisors (134159076).

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

84239244 is a wasteful number, since it uses less digits than its factorization.

84239244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780006 (or 779998 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 84239244 is about 9178.1939399862. The cubic root of 84239244 is about 438.3673030807.

The spelling of 84239244 in words is "eighty-four million, two hundred thirty-nine thousand, two hundred forty-four".