450401523 has 64 divisors (see below), whose sum is σ = 748500480. Its totient is φ = 237081600.

The previous prime is 450401509. The next prime is 450401527. The reversal of 450401523 is 325104054.

It is not a de Polignac number, because 450401523 - 2⁸ = 450401267 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 450401493 and 450401502.

It is not an unprimeable number, because it can be changed into a prime (450401527) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 509640 + ... + 510522.

It is an arithmetic number, because the mean of its divisors is an integer number (11695320).

Almost surely, 2^450401523 is an apocalyptic number.

450401523 is a deficient number, since it is larger than the sum of its proper divisors (298098957).

450401523 is a wasteful number, since it uses less digits than its factorization.

450401523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 450401523 is about 21222.6653132918. The cubic root of 450401523 is about 766.5372837956.

Adding to 450401523 its reverse (325104054), we get a palindrome (775505577).

The spelling of 450401523 in words is "four hundred fifty million, four hundred one thousand, five hundred twenty-three".