455407989 has 16 divisors (see below), whose sum is σ = 611069184. Its totient is φ = 301683200.

The previous prime is 455407973. The next prime is 455407991. The reversal of 455407989 is 989704554.

It is a cyclic number.

It is not a de Polignac number, because 455407989 - 2⁴ = 455407973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455407999) 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 15 ways as a sum of consecutive naturals, for example, 499444 + ... + 500354.

It is an arithmetic number, because the mean of its divisors is an integer number (38191824).

Almost surely, 2^455407989 is an apocalyptic number.

It is an amenable number.

455407989 is a deficient number, since it is larger than the sum of its proper divisors (155661195).

455407989 is a wasteful number, since it uses less digits than its factorization.

455407989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788.

The product of its (nonzero) digits is 1814400, while the sum is 51.

The square root of 455407989 is about 21340.2902745019. The cubic root of 455407989 is about 769.3669891665.

The spelling of 455407989 in words is "four hundred fifty-five million, four hundred seven thousand, nine hundred eighty-nine".