450431215 has 16 divisors (see below), whose sum is σ = 587867616. Its totient is φ = 329328000.

The previous prime is 450431183. The next prime is 450431227. The reversal of 450431215 is 512134054.

It is a happy number.

It is not a de Polignac number, because 450431215 - 2⁵ = 450431183 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 450431215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27741 + ... + 40870.

It is an arithmetic number, because the mean of its divisors is an integer number (36741726).

Almost surely, 2^450431215 is an apocalyptic number.

450431215 is a deficient number, since it is larger than the sum of its proper divisors (137436401).

450431215 is a wasteful number, since it uses less digits than its factorization.

450431215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68730.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 450431215 is about 21223.3648368962. The cubic root of 450431215 is about 766.5541276736.

Adding to 450431215 its reverse (512134054), we get a palindrome (962565269).

The spelling of 450431215 in words is "four hundred fifty million, four hundred thirty-one thousand, two hundred fifteen".