440990551 has 8 divisors (see below), whose sum is σ = 465102000. Its totient is φ = 416969280.

The previous prime is 440990453. The next prime is 440990579. The reversal of 440990551 is 155099044.

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

It is a cyclic number.

It is not a de Polignac number, because 440990551 - 2⁷ = 440990423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 440990551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440990351) 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 7 ways as a sum of consecutive naturals, for example, 12376 + ... + 32173.

It is an arithmetic number, because the mean of its divisors is an integer number (58137750).

Almost surely, 2^440990551 is an apocalyptic number.

440990551 is a deficient number, since it is larger than the sum of its proper divisors (24111449).

440990551 is a wasteful number, since it uses less digits than its factorization.

440990551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45089.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 440990551 is about 20999.7750226044. The cubic root of 440990551 is about 761.1608247367.

The spelling of 440990551 in words is "four hundred forty million, nine hundred ninety thousand, five hundred fifty-one".