840484888 has 16 divisors (see below), whose sum is σ = 1576291680. Its totient is φ = 420140448.

The previous prime is 840484877. The next prime is 840484889. The reversal of 840484888 is 888484048.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840484889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31170 + ... + 51502.

It is an arithmetic number, because the mean of its divisors is an integer number (98518230).

Almost surely, 2^840484888 is an apocalyptic number.

It is an amenable number.

840484888 is a deficient number, since it is larger than the sum of its proper divisors (735806792).

840484888 is a wasteful number, since it uses less digits than its factorization.

840484888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25506 (or 25502 counting only the distinct ones).

The product of its (nonzero) digits is 2097152, while the sum is 52.

The square root of 840484888 is about 28991.1173982653. The cubic root of 840484888 is about 943.7203129822.

The spelling of 840484888 in words is "eight hundred forty million, four hundred eighty-four thousand, eight hundred eighty-eight".