4040312445 has 48 divisors (see below), whose sum is σ = 7562231040. Its totient is φ = 1983719808.

The previous prime is 4040312443. The next prime is 4040312449. The reversal of 4040312445 is 5442130404.

It is a happy number.

It is not a de Polignac number, because 4040312445 - 2¹ = 4040312443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4040312443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 212604 + ... + 230826.

It is an arithmetic number, because the mean of its divisors is an integer number (157546480).

Almost surely, 2^4040312445 is an apocalyptic number.

4040312445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4040312445 is a deficient number, since it is larger than the sum of its proper divisors (3521918595).

4040312445 is a wasteful number, since it uses less digits than its factorization.

4040312445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18626 (or 18623 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 4040312445 is about 63563.4521167628. The cubic root of 4040312445 is about 1592.7159053269.

Adding to 4040312445 its reverse (5442130404), we get a palindrome (9482442849).

The spelling of 4040312445 in words is "four billion, forty million, three hundred twelve thousand, four hundred forty-five".