450564947 has 24 divisors (see below), whose sum is σ = 540945504. Its totient is φ = 373911552.

The previous prime is 450564941. The next prime is 450564953. The reversal of 450564947 is 749465054.

It is an interprime number because it is at equal distance from previous prime (450564941) and next prime (450564953).

It is not a de Polignac number, because 450564947 - 2⁸ = 450564691 is a prime.

It is a super-2 number, since 2×450564947² = 406017542930225618, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 450564898 and 450564907.

It is not an unprimeable number, because it can be changed into a prime (450564941) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 465458 + ... + 466424.

It is an arithmetic number, because the mean of its divisors is an integer number (22539396).

Almost surely, 2^450564947 is an apocalyptic number.

450564947 is a deficient number, since it is larger than the sum of its proper divisors (90380557).

450564947 is a wasteful number, since it uses less digits than its factorization.

450564947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275 (or 1268 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The square root of 450564947 is about 21226.5151873783. The cubic root of 450564947 is about 766.6299828909.

The spelling of 450564947 in words is "four hundred fifty million, five hundred sixty-four thousand, nine hundred forty-seven".