84011340 has 96 divisors (see below), whose sum is σ = 270111744. Its totient is φ = 19111680.

The previous prime is 84011321. The next prime is 84011351. The reversal of 84011340 is 4311048.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 31 ways as a sum of consecutive naturals, for example, 132825 + ... + 133455.

It is an arithmetic number, because the mean of its divisors is an integer number (2813664).

Almost surely, 2^84011340 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 84011340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135055872).

84011340 is an abundant number, since it is smaller than the sum of its proper divisors (186100404).

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

84011340 is a wasteful number, since it uses less digits than its factorization.

84011340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967 (or 965 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 84011340 is about 9165.7700167525. The cubic root of 84011340 is about 437.9716209381.

Adding to 84011340 its reverse (4311048), we get a palindrome (88322388).

The spelling of 84011340 in words is "eighty-four million, eleven thousand, three hundred forty".