840088044 has 24 divisors (see below), whose sum is σ = 2178006320. Its totient is φ = 280029312.

The previous prime is 840088043. The next prime is 840088049. The reversal of 840088044 is 440880048.

840088044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (840088043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3889189 + ... + 3889404.

Almost surely, 2^840088044 is an apocalyptic number.

It is an amenable number.

840088044 is an abundant number, since it is smaller than the sum of its proper divisors (1337918276).

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

840088044 is a wasteful number, since it uses less digits than its factorization.

840088044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7778606 (or 7778598 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 36.

The square root of 840088044 is about 28984.2723558829. The cubic root of 840088044 is about 943.5717603599.

The spelling of 840088044 in words is "eight hundred forty million, eighty-eight thousand, forty-four".