840231672 has 32 divisors (see below), whose sum is σ = 2400662400. Its totient is φ = 240066144.

The previous prime is 840231649. The next prime is 840231673. The reversal of 840231672 is 276132048.

840231672 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840231673) 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, 2500522 + ... + 2500857.

It is an arithmetic number, because the mean of its divisors is an integer number (75020700).

Almost surely, 2^840231672 is an apocalyptic number.

It is an amenable number.

840231672 is an abundant number, since it is smaller than the sum of its proper divisors (1560430728).

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

840231672 is a wasteful number, since it uses less digits than its factorization.

840231672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001395 (or 5001391 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 840231672 is about 28986.7499385495. The cubic root of 840231672 is about 943.6255307566.

The spelling of 840231672 in words is "eight hundred forty million, two hundred thirty-one thousand, six hundred seventy-two".