450308749 has 8 divisors (see below), whose sum is σ = 497976192. Its totient is φ = 403763040.

The previous prime is 450308731. The next prime is 450308773. The reversal of 450308749 is 947803054.

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 450308749 - 2⁵ = 450308717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450308779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279589 + ... + 281194.

It is an arithmetic number, because the mean of its divisors is an integer number (62247024).

Almost surely, 2^450308749 is an apocalyptic number.

It is an amenable number.

450308749 is a deficient number, since it is larger than the sum of its proper divisors (47667443).

450308749 is a wasteful number, since it uses less digits than its factorization.

450308749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560867.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 450308749 is about 21220.4794714917. The cubic root of 450308749 is about 766.4846495647.

The spelling of 450308749 in words is "four hundred fifty million, three hundred eight thousand, seven hundred forty-nine".