451922 has 4 divisors (see below), whose sum is σ = 677886. Its totient is φ = 225960.

The previous prime is 451921. The next prime is 451933. The reversal of 451922 is 229154.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 229154 = 2 ⋅114577.

It can be written as a sum of positive squares in only one way, i.e., 450241 + 1681 = 671^2 + 41^2 .

It is not an unprimeable number, because it can be changed into a prime (451921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112979 + ... + 112982.

2⁴⁵¹⁹²² is an apocalyptic number.

451922 is a deficient number, since it is larger than the sum of its proper divisors (225964).

451922 is a wasteful number, since it uses less digits than its factorization.

451922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225963.

The product of its digits is 720, while the sum is 23.

The square root of 451922 is about 672.2514410546. The cubic root of 451922 is about 76.7398880389.

The spelling of 451922 in words is "four hundred fifty-one thousand, nine hundred twenty-two".