451340 has 12 divisors (see below), whose sum is σ = 947856. Its totient is φ = 180528.

The previous prime is 451337. The next prime is 451343. The reversal of 451340 is 43154.

It is an interprime number because it is at equal distance from previous prime (451337) and next prime (451343).

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11264 + ... + 11303.

It is an arithmetic number, because the mean of its divisors is an integer number (78988).

2⁴⁵¹³⁴⁰ is an apocalyptic number.

It is an amenable number.

451340 is an abundant number, since it is smaller than the sum of its proper divisors (496516).

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

451340 is a wasteful number, since it uses less digits than its factorization.

451340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22576 (or 22574 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 451340 is about 671.8184278509. The cubic root of 451340 is about 76.7069311708.

Adding to 451340 its reverse (43154), we get a palindrome (494494).

The spelling of 451340 in words is "four hundred fifty-one thousand, three hundred forty".