453438 has 28 divisors (see below), whose sum is σ = 1023048. Its totient is φ = 150660.

The previous prime is 453421. The next prime is 453451. The reversal of 453438 is 834354.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 9.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1303 + ... + 1613.

2⁴⁵³⁴³⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 453438, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (511524).

453438 is an abundant number, since it is smaller than the sum of its proper divisors (569610).

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

453438 is an equidigital number, since it uses as much as digits as its factorization.

453438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 316 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 453438 is about 673.3780513204. The cubic root of 453438 is about 76.8256018161.

The spelling of 453438 in words is "four hundred fifty-three thousand, four hundred thirty-eight".