84130238 has 4 divisors (see below), whose sum is σ = 126195360. Its totient is φ = 42065118.

The previous prime is 84130219. The next prime is 84130253. The reversal of 84130238 is 83203148.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 84130238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21032558 + ... + 21032561.

It is an arithmetic number, because the mean of its divisors is an integer number (31548840).

Almost surely, 2^84130238 is an apocalyptic number.

84130238 is a deficient number, since it is larger than the sum of its proper divisors (42065122).

84130238 is a wasteful number, since it uses less digits than its factorization.

84130238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42065121.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 84130238 is about 9172.2537034253. The cubic root of 84130238 is about 438.1781383083.

The spelling of 84130238 in words is "eighty-four million, one hundred thirty thousand, two hundred thirty-eight".