840448970 has 16 divisors (see below), whose sum is σ = 1513427328. Its totient is φ = 336042000.

The previous prime is 840448963. The next prime is 840448979. The reversal of 840448970 is 79844048.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (840448979) 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, 10595 + ... + 42345.

It is an arithmetic number, because the mean of its divisors is an integer number (94589208).

Almost surely, 2^840448970 is an apocalyptic number.

840448970 is a deficient number, since it is larger than the sum of its proper divisors (672978358).

840448970 is a wasteful number, since it uses less digits than its factorization.

840448970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34405.

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 840448970 is about 28990.4979260447. The cubic root of 840448970 is about 943.7068695404.

The spelling of 840448970 in words is "eight hundred forty million, four hundred forty-eight thousand, nine hundred seventy".