450144342 has 24 divisors (see below), whose sum is σ = 977437344. Its totient is φ = 149721264.

The previous prime is 450144341. The next prime is 450144361. The reversal of 450144342 is 243441054.

It is a happy number.

It is a super-3 number, since 3×450144342³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450144341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18673 + ... + 35340.

It is an arithmetic number, because the mean of its divisors is an integer number (40726556).

Almost surely, 2^450144342 is an apocalyptic number.

450144342 is an abundant number, since it is smaller than the sum of its proper divisors (527293002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

450144342 is a wasteful number, since it uses less digits than its factorization.

450144342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54484 (or 54481 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 450144342 is about 21216.6053363869. The cubic root of 450144342 is about 766.3913574393.

Adding to 450144342 its reverse (243441054), we get a palindrome (693585396).

The spelling of 450144342 in words is "four hundred fifty million, one hundred forty-four thousand, three hundred forty-two".