840275904 has 56 divisors (see below), whose sum is σ = 2394254800. Its totient is φ = 258545664.

The previous prime is 840275869. The next prime is 840275927. The reversal of 840275904 is 409572048.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165829 + ... + 170820.

It is an arithmetic number, because the mean of its divisors is an integer number (42754550).

Almost surely, 2^840275904 is an apocalyptic number.

It is an amenable number.

840275904 is an abundant number, since it is smaller than the sum of its proper divisors (1553978896).

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

840275904 is a wasteful number, since it uses less digits than its factorization.

840275904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336677 (or 336667 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 840275904 is about 28987.5128977979. The cubic root of 840275904 is about 943.6420887741.

The spelling of 840275904 in words is "eight hundred forty million, two hundred seventy-five thousand, nine hundred four".