450140 has 24 divisors (see below), whose sum is σ = 961632. Its totient is φ = 176960.

The previous prime is 450137. The next prime is 450161. The reversal of 450140 is 41054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1262 + ... + 1578.

It is an arithmetic number, because the mean of its divisors is an integer number (40068).

2⁴⁵⁰¹⁴⁰ is an apocalyptic number.

It is an amenable number.

450140 is an abundant number, since it is smaller than the sum of its proper divisors (511492).

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

450140 is a wasteful number, since it uses less digits than its factorization.

450140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 450140 is about 670.9247349741. The cubic root of 450140 is about 76.6388893280.

Adding to 450140 its reverse (41054), we get a palindrome (491194).

The spelling of 450140 in words is "four hundred fifty thousand, one hundred forty".