840057795 has 24 divisors (see below), whose sum is σ = 1458935712. Its totient is φ = 447158400.

The previous prime is 840057787. The next prime is 840057853. The reversal of 840057795 is 597750048.

It is not a de Polignac number, because 840057795 - 2³ = 840057787 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 840057795.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5530 + ... + 41360.

It is an arithmetic number, because the mean of its divisors is an integer number (60788988).

Almost surely, 2^840057795 is an apocalyptic number.

840057795 is a deficient number, since it is larger than the sum of its proper divisors (618877917).

840057795 is a wasteful number, since it uses less digits than its factorization.

840057795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36363 (or 36360 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 840057795 is about 28983.7505337042. The cubic root of 840057795 is about 943.5604351800.

The spelling of 840057795 in words is "eight hundred forty million, fifty-seven thousand, seven hundred ninety-five".