452840 has 16 divisors (see below), whose sum is σ = 1018980. Its totient is φ = 181120.

The previous prime is 452831. The next prime is 452857. The reversal of 452840 is 48254.

452840 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 407044 + 45796 = 638^2 + 214^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5621 + ... + 5700.

2⁴⁵²⁸⁴⁰ is an apocalyptic number.

452840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

452840 is an abundant number, since it is smaller than the sum of its proper divisors (566140).

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

452840 is a wasteful number, since it uses less digits than its factorization.

452840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11332 (or 11328 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 452840 is about 672.9338749090. The cubic root of 452840 is about 76.7918140870.

The spelling of 452840 in words is "four hundred fifty-two thousand, eight hundred forty".