84312442 has 8 divisors (see below), whose sum is σ = 126513216. Its totient is φ = 42141372.

The previous prime is 84312439. The next prime is 84312451. The reversal of 84312442 is 24421348.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 84312442.

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, 2133 + ... + 13159.

It is an arithmetic number, because the mean of its divisors is an integer number (15814152).

Almost surely, 2^84312442 is an apocalyptic number.

84312442 is a deficient number, since it is larger than the sum of its proper divisors (42200774).

84312442 is a wasteful number, since it uses less digits than its factorization.

84312442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14852.

The product of its digits is 6144, while the sum is 28.

The square root of 84312442 is about 9182.1806778129. The cubic root of 84312442 is about 438.4942364784.

It can be divided in two parts, 8431 and 2442, that multiplied together give a palindrome (20588502).

The spelling of 84312442 in words is "eighty-four million, three hundred twelve thousand, four hundred forty-two".