4040032445 has 4 divisors (see below), whose sum is σ = 4848038940. Its totient is φ = 3232025952.

The previous prime is 4040032417. The next prime is 4040032471. The reversal of 4040032445 is 5442300404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2666069956 + 1373962489 = 51634^2 + 37067^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4040032445 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404003240 + ... + 404003249.

It is an arithmetic number, because the mean of its divisors is an integer number (1212009735).

Almost surely, 2^4040032445 is an apocalyptic number.

It is an amenable number.

4040032445 is a deficient number, since it is larger than the sum of its proper divisors (808006495).

4040032445 is an equidigital number, since it uses as much as digits as its factorization.

4040032445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808006494.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 4040032445 is about 63561.2495550552. The cubic root of 4040032445 is about 1592.6791119055.

Adding to 4040032445 its reverse (5442300404), we get a palindrome (9482332849).

The spelling of 4040032445 in words is "four billion, forty million, thirty-two thousand, four hundred forty-five".