84122340 has 48 divisors (see below), whose sum is σ = 235999680. Its totient is φ = 22389120.

The previous prime is 84122333. The next prime is 84122347. The reversal of 84122340 is 4322148.

It is an interprime number because it is at equal distance from previous prime (84122333) and next prime (84122347).

It is a self number, because there is not a number n which added to its sum of digits gives 84122340.

It is not an unprimeable number, because it can be changed into a prime (84122347) 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, 40446 + ... + 42474.

It is an arithmetic number, because the mean of its divisors is an integer number (4916660).

Almost surely, 2^84122340 is an apocalyptic number.

It is an amenable number.

84122340 is an abundant number, since it is smaller than the sum of its proper divisors (151877340).

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

84122340 is a wasteful number, since it uses less digits than its factorization.

84122340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2732 (or 2730 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 84122340 is about 9171.8231557308. The cubic root of 84122340 is about 438.1644260794.

Adding to 84122340 its reverse (4322148), we get a palindrome (88444488).

The spelling of 84122340 in words is "eighty-four million, one hundred twenty-two thousand, three hundred forty".