84042272 has 24 divisors (see below), whose sum is σ = 167729436. Its totient is φ = 41444352.

The previous prime is 84042229. The next prime is 84042289. The reversal of 84042272 is 27224048.

It can be written as a sum of positive squares in 2 ways, for example, as 74580496 + 9461776 = 8636^2 + 3076^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15653 + ... + 20324.

Almost surely, 2^84042272 is an apocalyptic number.

It is an amenable number.

84042272 is a deficient number, since it is larger than the sum of its proper divisors (83687164).

84042272 is a wasteful number, since it uses less digits than its factorization.

84042272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36060 (or 36052 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 29.

The square root of 84042272 is about 9167.4572265160. The cubic root of 84042272 is about 438.0253663645.

The spelling of 84042272 in words is "eighty-four million, forty-two thousand, two hundred seventy-two".