450040293 has 20 divisors (see below), whose sum is σ = 672856800. Its totient is φ = 299770632.

The previous prime is 450040277. The next prime is 450040307. The reversal of 450040293 is 392040054.

It is not a de Polignac number, because 450040293 - 2⁴ = 450040277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450040223) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 168696 + ... + 171342.

It is an arithmetic number, because the mean of its divisors is an integer number (33642840).

Almost surely, 2^450040293 is an apocalyptic number.

It is an amenable number.

450040293 is a deficient number, since it is larger than the sum of its proper divisors (222816507).

450040293 is a wasteful number, since it uses less digits than its factorization.

450040293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4758 (or 4749 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 450040293 is about 21214.1531294558. The cubic root of 450040293 is about 766.3323034931.

The spelling of 450040293 in words is "four hundred fifty million, forty thousand, two hundred ninety-three".