840474732 has 48 divisors (see below), whose sum is σ = 2026708992. Its totient is φ = 270916800.

The previous prime is 840474707. The next prime is 840474737. The reversal of 840474732 is 237474048.

It is not an unprimeable number, because it can be changed into a prime (840474737) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 44053 + ... + 60179.

It is an arithmetic number, because the mean of its divisors is an integer number (42223104).

Almost surely, 2^840474732 is an apocalyptic number.

It is an amenable number.

840474732 is an abundant number, since it is smaller than the sum of its proper divisors (1186234260).

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

840474732 is a wasteful number, since it uses less digits than its factorization.

840474732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16278 (or 16276 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 39.

The square root of 840474732 is about 28990.9422406379. The cubic root of 840474732 is about 943.7165118185.

The spelling of 840474732 in words is "eight hundred forty million, four hundred seventy-four thousand, seven hundred thirty-two".