451389 has 8 divisors (see below), whose sum is σ = 604960. Its totient is φ = 299376.

The previous prime is 451387. The next prime is 451397. The reversal of 451389 is 983154.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 451389 - 2¹ = 451387 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 939 + ... + 1335.

It is an arithmetic number, because the mean of its divisors is an integer number (75620).

2⁴⁵¹³⁸⁹ is an apocalyptic number.

It is an amenable number.

451389 is a deficient number, since it is larger than the sum of its proper divisors (153571).

451389 is a wasteful number, since it uses less digits than its factorization.

451389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779.

The product of its digits is 4320, while the sum is 30.

The square root of 451389 is about 671.8548950480. The cubic root of 451389 is about 76.7097069818.

The spelling of 451389 in words is "four hundred fifty-one thousand, three hundred eighty-nine".