84340368 has 90 divisors (see below), whose sum is σ = 274595334. Its totient is φ = 24095232.

The previous prime is 84340363. The next prime is 84340391. The reversal of 84340368 is 86304348.

It can be written as a sum of positive squares in only one way, i.e., 82301184 + 2039184 = 9072^2 + 1428^2 .

It is a super-2 number, since 2×84340368² = 14226595348750848, which contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (84340363) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1080 + ... + 13032.

Almost surely, 2^84340368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84340368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137297667).

84340368 is an abundant number, since it is smaller than the sum of its proper divisors (190254966).

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

84340368 is a wasteful number, since it uses less digits than its factorization.

84340368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11981 (or 11965 counting only the distinct ones).

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

The square root of 84340368 is about 9183.7012146520. The cubic root of 84340368 is about 438.5426438784.

The spelling of 84340368 in words is "eighty-four million, three hundred forty thousand, three hundred sixty-eight".