450988917 has 16 divisors (see below), whose sum is σ = 608710080. Its totient is φ = 296980992.

The previous prime is 450988913. The next prime is 450988931. The reversal of 450988917 is 719889054.

It is not a de Polignac number, because 450988917 - 2² = 450988913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 450988917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450988913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113478 + ... + 117384.

It is an arithmetic number, because the mean of its divisors is an integer number (38044380).

Almost surely, 2^450988917 is an apocalyptic number.

It is an amenable number.

450988917 is a deficient number, since it is larger than the sum of its proper divisors (157721163).

450988917 is a wasteful number, since it uses less digits than its factorization.

450988917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4372.

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 450988917 is about 21236.4996409484. The cubic root of 450988917 is about 766.8703671918.

The spelling of 450988917 in words is "four hundred fifty million, nine hundred eighty-eight thousand, nine hundred seventeen".