450890805 has 24 divisors (see below), whose sum is σ = 761402592. Its totient is φ = 227815776.

The previous prime is 450890789. The next prime is 450890807. The reversal of 450890805 is 508098054.

It is not a de Polignac number, because 450890805 - 2⁴ = 450890789 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450890807) 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, 36219 + ... + 47048.

It is an arithmetic number, because the mean of its divisors is an integer number (31725108).

Almost surely, 2^450890805 is an apocalyptic number.

It is an amenable number.

450890805 is a deficient number, since it is larger than the sum of its proper divisors (310511787).

450890805 is a wasteful number, since it uses less digits than its factorization.

450890805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83313 (or 83294 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 450890805 is about 21234.1895300951. The cubic root of 450890805 is about 766.8147526380.

The spelling of 450890805 in words is "four hundred fifty million, eight hundred ninety thousand, eight hundred five".