840486375 has 160 divisors (see below), whose sum is σ = 1753202880. Its totient is φ = 398131200.

The previous prime is 840486371. The next prime is 840486433. The reversal of 840486375 is 573684048.

840486375 is a `hidden beast` number, since 8 + 4 + 0 + 4 + 8 + 637 + 5 = 666.

It is not a de Polignac number, because 840486375 - 2² = 840486371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 840486375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840486371) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 3270247 + ... + 3270503.

It is an arithmetic number, because the mean of its divisors is an integer number (10957518).

Almost surely, 2^840486375 is an apocalyptic number.

840486375 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

840486375 is an abundant number, since it is smaller than the sum of its proper divisors (912716505).

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

840486375 is a wasteful number, since it uses less digits than its factorization.

840486375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 840486375 is about 28991.1430440402. The cubic root of 840486375 is about 943.7208695305.

The spelling of 840486375 in words is "eight hundred forty million, four hundred eighty-six thousand, three hundred seventy-five".