840475507 has 12 divisors (see below), whose sum is σ = 901604496. Its totient is φ = 783166320.

The previous prime is 840475501. The next prime is 840475511. The reversal of 840475507 is 705574048.

It is not a de Polignac number, because 840475507 - 2¹⁵ = 840442739 is a prime.

It is a super-3 number, since 3×840475507³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 840475507.

It is not an unprimeable number, because it can be changed into a prime (840475501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2938 + ... + 41104.

It is an arithmetic number, because the mean of its divisors is an integer number (75133708).

Almost surely, 2^840475507 is an apocalyptic number.

840475507 is a deficient number, since it is larger than the sum of its proper divisors (61128989).

840475507 is a wasteful number, since it uses less digits than its factorization.

840475507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38266 (or 38247 counting only the distinct ones).

The product of its (nonzero) digits is 156800, while the sum is 40.

The square root of 840475507 is about 28990.9556068785. The cubic root of 840475507 is about 943.7168018847.

The spelling of 840475507 in words is "eight hundred forty million, four hundred seventy-five thousand, five hundred seven".