450444231442 has 4 divisors (see below), whose sum is σ = 675666347166. Its totient is φ = 225222115720.

The previous prime is 450444231431. The next prime is 450444231463. The reversal of 450444231442 is 244132444054.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 449544771361 + 899460081 = 670481^2 + 29991^2 .

It is a super-2 number, since 2×450444231442² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112611057859 + ... + 112611057862.

Almost surely, 2^450444231442 is an apocalyptic number.

450444231442 is a deficient number, since it is larger than the sum of its proper divisors (225222115724).

450444231442 is a wasteful number, since it uses less digits than its factorization.

450444231442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225222115723.

The product of its (nonzero) digits is 245760, while the sum is 37.

Adding to 450444231442 its reverse (244132444054), we get a palindrome (694576675496).

The spelling of 450444231442 in words is "four hundred fifty billion, four hundred forty-four million, two hundred thirty-one thousand, four hundred forty-two".