453942 has 12 divisors (see below), whose sum is σ = 983580. Its totient is φ = 151308.

The previous prime is 453931. The next prime is 453949. The reversal of 453942 is 249354.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453949) by changing a digit.

453942 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12592 + ... + 12627.

It is an arithmetic number, because the mean of its divisors is an integer number (81965).

2⁴⁵³⁹⁴² is an apocalyptic number.

453942 is an abundant number, since it is smaller than the sum of its proper divisors (529638).

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

453942 is a wasteful number, since it uses less digits than its factorization.

453942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25227 (or 25224 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 453942 is about 673.7521799594. The cubic root of 453942 is about 76.8540553689.

The spelling of 453942 in words is "four hundred fifty-three thousand, nine hundred forty-two".