450747918 has 24 divisors (see below), whose sum is σ = 985584600. Its totient is φ = 148870224.

The previous prime is 450747901. The next prime is 450747923. The reversal of 450747918 is 819747054.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 112908 + ... + 116831.

It is an arithmetic number, because the mean of its divisors is an integer number (41066025).

Almost surely, 2^450747918 is an apocalyptic number.

450747918 is an abundant number, since it is smaller than the sum of its proper divisors (534836682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

450747918 is a wasteful number, since it uses less digits than its factorization.

450747918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229856 (or 229853 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 450747918 is about 21230.8247131382. The cubic root of 450747918 is about 766.7337430495.

It can be divided in two parts, 4507 and 47918, that added together give a palindrome (52425).

The spelling of 450747918 in words is "four hundred fifty million, seven hundred forty-seven thousand, nine hundred eighteen".