84044040 has 32 divisors (see below), whose sum is σ = 252132480. Its totient is φ = 22411712.

The previous prime is 84044029. The next prime is 84044053. The reversal of 84044040 is 4044048.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 84044040.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350064 + ... + 350303.

It is an arithmetic number, because the mean of its divisors is an integer number (7879140).

Almost surely, 2^84044040 is an apocalyptic number.

It is an amenable number.

84044040 is an abundant number, since it is smaller than the sum of its proper divisors (168088440).

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

84044040 is a wasteful number, since it uses less digits than its factorization.

84044040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700381 (or 700377 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 84044040 is about 9167.5536540562. The cubic root of 84044040 is about 438.0284379276.

Adding to 84044040 its reverse (4044048), we get a palindrome (88088088).

The spelling of 84044040 in words is "eighty-four million, forty-four thousand, forty".