451342 has 4 divisors (see below), whose sum is σ = 677016. Its totient is φ = 225670.

The previous prime is 451337. The next prime is 451343. The reversal of 451342 is 243154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 243154 = 2 ⋅121577.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451343) by changing a digit.

451342 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 as a sum of consecutive naturals, namely, 112834 + ... + 112837.

It is an arithmetic number, because the mean of its divisors is an integer number (169254).

2⁴⁵¹³⁴² is an apocalyptic number.

451342 is a deficient number, since it is larger than the sum of its proper divisors (225674).

451342 is a wasteful number, since it uses less digits than its factorization.

451342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225673.

The product of its digits is 480, while the sum is 19.

The square root of 451342 is about 671.8199163466. The cubic root of 451342 is about 76.7070444731.

Adding to 451342 its reverse (243154), we get a palindrome (694496).

The spelling of 451342 in words is "four hundred fifty-one thousand, three hundred forty-two".