450246442 has 4 divisors (see below), whose sum is σ = 675369666. Its totient is φ = 225123220.

The previous prime is 450246427. The next prime is 450246469. The reversal of 450246442 is 244642054.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244642054 = 2 ⋅122321027.

It can be written as a sum of positive squares in only one way, i.e., 304537401 + 145709041 = 17451^2 + 12071^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112561609 + ... + 112561612.

Almost surely, 2^450246442 is an apocalyptic number.

450246442 is a deficient number, since it is larger than the sum of its proper divisors (225123224).

450246442 is a wasteful number, since it uses less digits than its factorization.

450246442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225123223.

The product of its (nonzero) digits is 30720, while the sum is 31.

The square root of 450246442 is about 21219.0113341786. The cubic root of 450246442 is about 766.4492963676.

Adding to 450246442 its reverse (244642054), we get a palindrome (694888496).

The spelling of 450246442 in words is "four hundred fifty million, two hundred forty-six thousand, four hundred forty-two".