8440887345 has 64 divisors (see below), whose sum is σ = 15656820480. Its totient is φ = 3837747200.

The previous prime is 8440887337. The next prime is 8440887361. The reversal of 8440887345 is 5437880448.

It is not a de Polignac number, because 8440887345 - 2³ = 8440887337 is a prime.

It is a super-2 number, since 2×8440887345² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 782851 + ... + 793559.

It is an arithmetic number, because the mean of its divisors is an integer number (244637820).

Almost surely, 2^8440887345 is an apocalyptic number.

8440887345 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8440887345 is a deficient number, since it is larger than the sum of its proper divisors (7215933135).

8440887345 is a wasteful number, since it uses less digits than its factorization.

8440887345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11026.

The product of its (nonzero) digits is 3440640, while the sum is 51.

The square root of 8440887345 is about 91874.3018748986. The cubic root of 8440887345 is about 2036.0856106321.

The spelling of 8440887345 in words is "eight billion, four hundred forty million, eight hundred eighty-seven thousand, three hundred forty-five".