450539663 has 12 divisors (see below), whose sum is σ = 546885360. Its totient is φ = 369385632.

The previous prime is 450539653. The next prime is 450539741. The reversal of 450539663 is 366935054.

It is not a de Polignac number, because 450539663 - 2¹⁰ = 450538639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 450539663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450539623) 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, 198758 + ... + 201011.

It is an arithmetic number, because the mean of its divisors is an integer number (45573780).

Almost surely, 2^450539663 is an apocalyptic number.

450539663 is a deficient number, since it is larger than the sum of its proper divisors (96345697).

450539663 is a wasteful number, since it uses less digits than its factorization.

450539663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399806 (or 399799 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 41.

The square root of 450539663 is about 21225.9196031644. The cubic root of 450539663 is about 766.6156424980.

The spelling of 450539663 in words is "four hundred fifty million, five hundred thirty-nine thousand, six hundred sixty-three".