840641373 has 48 divisors (see below), whose sum is σ = 1430170560. Its totient is φ = 469094400.

The previous prime is 840641363. The next prime is 840641383. The reversal of 840641373 is 373146048.

840641373 is a `hidden beast` number, since 8 + 4 + 0 + 641 + 3 + 7 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (840641363) and next prime (840641383).

It is not a de Polignac number, because 840641373 - 2⁵ = 840641341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840641323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 824458 + ... + 825476.

It is an arithmetic number, because the mean of its divisors is an integer number (29795220).

Almost surely, 2^840641373 is an apocalyptic number.

It is an amenable number.

840641373 is a deficient number, since it is larger than the sum of its proper divisors (589529187).

840641373 is a wasteful number, since it uses less digits than its factorization.

840641373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1690 (or 1687 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 840641373 is about 28993.8161165446. The cubic root of 840641373 is about 943.7788779491.

The spelling of 840641373 in words is "eight hundred forty million, six hundred forty-one thousand, three hundred seventy-three".