8440045251 has 32 divisors (see below), whose sum is σ = 12408768000. Its totient is φ = 5060321280.

The previous prime is 8440045219. The next prime is 8440045333. The reversal of 8440045251 is 1525400448.

It is a happy number.

It is not a de Polignac number, because 8440045251 - 2⁵ = 8440045219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (8440045051) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1260330 + ... + 1267008.

It is an arithmetic number, because the mean of its divisors is an integer number (387774000).

Almost surely, 2^8440045251 is an apocalyptic number.

8440045251 is a deficient number, since it is larger than the sum of its proper divisors (3968722749).

8440045251 is a wasteful number, since it uses less digits than its factorization.

8440045251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7099.

The product of its (nonzero) digits is 25600, while the sum is 33.

The square root of 8440045251 is about 91869.7189012789. The cubic root of 8440045251 is about 2036.0178992480.

Adding to 8440045251 its reverse (1525400448), we get a palindrome (9965445699).

The spelling of 8440045251 in words is "eight billion, four hundred forty million, forty-five thousand, two hundred fifty-one".