450420531 has 8 divisors (see below), whose sum is σ = 655157184. Its totient is φ = 272982120.

The previous prime is 450420527. The next prime is 450420539. The reversal of 450420531 is 135024054.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 450420531 - 2² = 450420527 is a prime.

It is a super-2 number, since 2×450420531² = 405757309492643922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (450420539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6824521 + ... + 6824586.

It is an arithmetic number, because the mean of its divisors is an integer number (81894648).

Almost surely, 2^450420531 is an apocalyptic number.

450420531 is a deficient number, since it is larger than the sum of its proper divisors (204736653).

450420531 is a wasteful number, since it uses less digits than its factorization.

450420531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13649121.

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

The square root of 450420531 is about 21223.1131316779. The cubic root of 450420531 is about 766.5480668673.

Adding to 450420531 its reverse (135024054), we get a palindrome (585444585).

The spelling of 450420531 in words is "four hundred fifty million, four hundred twenty thousand, five hundred thirty-one".