440552645 has 8 divisors (see below), whose sum is σ = 569329656. Its totient is φ = 325331136.

The previous prime is 440552611. The next prime is 440552653. The reversal of 440552645 is 546255044.

It can be written as a sum of positive squares in 4 ways, for example, as 1985281 + 438567364 = 1409^2 + 20942^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 440552645 - 2¹⁰ = 440551621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3388802 + ... + 3388931.

It is an arithmetic number, because the mean of its divisors is an integer number (71166207).

Almost surely, 2^440552645 is an apocalyptic number.

It is an amenable number.

440552645 is a deficient number, since it is larger than the sum of its proper divisors (128777011).

440552645 is a wasteful number, since it uses less digits than its factorization.

440552645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6777751.

The product of its (nonzero) digits is 96000, while the sum is 35.

The square root of 440552645 is about 20989.3459879054. The cubic root of 440552645 is about 760.9087956922.

The spelling of 440552645 in words is "four hundred forty million, five hundred fifty-two thousand, six hundred forty-five".