450349218 has 24 divisors (see below), whose sum is σ = 1064462256. Its totient is φ = 136469400.

The previous prime is 450349213. The next prime is 450349219. The reversal of 450349218 is 812943054.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (450349213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1137048 + ... + 1137443.

It is an arithmetic number, because the mean of its divisors is an integer number (44352594).

Almost surely, 2^450349218 is an apocalyptic number.

450349218 is an abundant number, since it is smaller than the sum of its proper divisors (614113038).

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

450349218 is a wasteful number, since it uses less digits than its factorization.

450349218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2274510 (or 2274507 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 450349218 is about 21221.4329864880. The cubic root of 450349218 is about 766.5076100618.

The spelling of 450349218 in words is "four hundred fifty million, three hundred forty-nine thousand, two hundred eighteen".