840485344 has 12 divisors (see below), whose sum is σ = 1654705584. Its totient is φ = 420242656.

The previous prime is 840485341. The next prime is 840485383. The reversal of 840485344 is 443584048.

It is a happy number.

It is a super-2 number, since 2×840485344² = 1412831226957596672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 840485297 and 840485306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840485341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13132552 + ... + 13132615.

It is an arithmetic number, because the mean of its divisors is an integer number (137892132).

Almost surely, 2^840485344 is an apocalyptic number.

It is an amenable number.

840485344 is a deficient number, since it is larger than the sum of its proper divisors (814220240).

840485344 is a wasteful number, since it uses less digits than its factorization.

840485344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26265177 (or 26265169 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 40.

The square root of 840485344 is about 28991.1252627420. The cubic root of 840485344 is about 943.7204836521.

The spelling of 840485344 in words is "eight hundred forty million, four hundred eighty-five thousand, three hundred forty-four".