84304340 has 12 divisors (see below), whose sum is σ = 177039156. Its totient is φ = 33721728.

The previous prime is 84304327. The next prime is 84304369. The reversal of 84304340 is 4340348.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 9412624 + 74891716 = 3068^2 + 8654^2 .

It is a congruent number.

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, 2107589 + ... + 2107628.

It is an arithmetic number, because the mean of its divisors is an integer number (14753263).

Almost surely, 2^84304340 is an apocalyptic number.

It is an amenable number.

84304340 is an abundant number, since it is smaller than the sum of its proper divisors (92734816).

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

84304340 is a wasteful number, since it uses less digits than its factorization.

84304340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4215226 (or 4215224 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 84304340 is about 9181.7394866115. The cubic root of 84304340 is about 438.4801903344.

Adding to 84304340 its reverse (4340348), we get a palindrome (88644688).

The spelling of 84304340 in words is "eighty-four million, three hundred four thousand, three hundred forty".