450740 has 24 divisors (see below), whose sum is σ = 978432. Its totient is φ = 174240.

The previous prime is 450727. The next prime is 450761. The reversal of 450740 is 47054.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 257 + ... + 983.

It is an arithmetic number, because the mean of its divisors is an integer number (40768).

2⁴⁵⁰⁷⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 450740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (489216).

450740 is an abundant number, since it is smaller than the sum of its proper divisors (527692).

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

450740 is a wasteful number, since it uses less digits than its factorization.

450740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767 (or 765 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 450740 is about 671.3717301168. The cubic root of 450740 is about 76.6729253450.

Adding to 450740 its reverse (47054), we get a palindrome (497794).

The spelling of 450740 in words is "four hundred fifty thousand, seven hundred forty".