450865290 has 16 divisors (see below), whose sum is σ = 1082076768. Its totient is φ = 120230736.

The previous prime is 450865267. The next prime is 450865309. The reversal of 450865290 is 92568054.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7514392 + ... + 7514451.

It is an arithmetic number, because the mean of its divisors is an integer number (67629798).

Almost surely, 2^450865290 is an apocalyptic number.

450865290 is an abundant number, since it is smaller than the sum of its proper divisors (631211478).

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

450865290 is a wasteful number, since it uses less digits than its factorization.

450865290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15028853.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 450865290 is about 21233.5887216457. The cubic root of 450865290 is about 766.8002881991.

The spelling of 450865290 in words is "four hundred fifty million, eight hundred sixty-five thousand, two hundred ninety".