840460268444 has 6 divisors (see below), whose sum is σ = 1470805469784. Its totient is φ = 420230134220.

The previous prime is 840460268441. The next prime is 840460268447. The reversal of 840460268444 is 444862064048.

It is an interprime number because it is at equal distance from previous prime (840460268441) and next prime (840460268447).

It is a super-2 number, since 2×840460268444² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 840460268392 and 840460268401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840460268441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105057533552 + ... + 105057533559.

It is an arithmetic number, because the mean of its divisors is an integer number (245134244964).

Almost surely, 2^840460268444 is an apocalyptic number.

It is an amenable number.

840460268444 is a deficient number, since it is larger than the sum of its proper divisors (630345201340).

840460268444 is a wasteful number, since it uses less digits than its factorization.

840460268444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210115067115 (or 210115067113 counting only the distinct ones).

The product of its (nonzero) digits is 4718592, while the sum is 50.

The spelling of 840460268444 in words is "eight hundred forty billion, four hundred sixty million, two hundred sixty-eight thousand, four hundred forty-four".