450440542 has 4 divisors (see below), whose sum is σ = 675660816. Its totient is φ = 225220270.

The previous prime is 450440513. The next prime is 450440563. The reversal of 450440542 is 245044054.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 450440542.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112610134 + ... + 112610137.

It is an arithmetic number, because the mean of its divisors is an integer number (168915204).

Almost surely, 2^450440542 is an apocalyptic number.

450440542 is a deficient number, since it is larger than the sum of its proper divisors (225220274).

450440542 is a wasteful number, since it uses less digits than its factorization.

450440542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225220273.

The product of its (nonzero) digits is 12800, while the sum is 28.

The square root of 450440542 is about 21223.5845700014. The cubic root of 450440542 is about 766.5594186043.

Adding to 450440542 its reverse (245044054), we get a palindrome (695484596).

The spelling of 450440542 in words is "four hundred fifty million, four hundred forty thousand, five hundred forty-two".