450342 has 24 divisors (see below), whose sum is σ = 988416. Its totient is φ = 148176.

The previous prime is 450311. The next prime is 450343. The reversal of 450342 is 243054.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450343) by changing a digit.

450342 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2188 + ... + 2384.

It is an arithmetic number, because the mean of its divisors is an integer number (41184).

2⁴⁵⁰³⁴² is an apocalyptic number.

450342 is an abundant number, since it is smaller than the sum of its proper divisors (538074).

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

450342 is a wasteful number, since it uses less digits than its factorization.

450342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 450342 is about 671.0752565845. The cubic root of 450342 is about 76.6503514957.

Adding to 450342 its reverse (243054), we get a palindrome (693396).

The spelling of 450342 in words is "four hundred fifty thousand, three hundred forty-two".