450680 has 32 divisors (see below), whose sum is σ = 1069200. Its totient is φ = 170496.

The previous prime is 450677. The next prime is 450691. The reversal of 450680 is 86054.

It is a super-2 number, since 2×450680² = 406224924800, which contains 22 as substring.

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, 464 + ... + 1056.

2⁴⁵⁰⁶⁸⁰ is an apocalyptic number.

450680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 450680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534600).

450680 is an abundant number, since it is smaller than the sum of its proper divisors (618520).

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

450680 is a wasteful number, since it uses less digits than its factorization.

450680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 450680 is about 671.3270439957. The cubic root of 450680 is about 76.6695231030.

The spelling of 450680 in words is "four hundred fifty thousand, six hundred eighty".