84334440 has 32 divisors (see below), whose sum is σ = 253003680. Its totient is φ = 22489152.

The previous prime is 84334429. The next prime is 84334451. The reversal of 84334440 is 4443348.

It is an interprime number because it is at equal distance from previous prime (84334429) and next prime (84334451).

It is a super-2 number, since 2×84334440² = 14224595540227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 84334398 and 84334407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351274 + ... + 351513.

It is an arithmetic number, because the mean of its divisors is an integer number (7906365).

Almost surely, 2^84334440 is an apocalyptic number.

It is an amenable number.

84334440 is an abundant number, since it is smaller than the sum of its proper divisors (168669240).

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

84334440 is a wasteful number, since it uses less digits than its factorization.

84334440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702801 (or 702797 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

The square root of 84334440 is about 9183.3784632890. The cubic root of 84334440 is about 438.5323690766.

Adding to 84334440 its reverse (4443348), we get a palindrome (88777788).

The spelling of 84334440 in words is "eighty-four million, three hundred thirty-four thousand, four hundred forty".