451120 has 20 divisors (see below), whose sum is σ = 1049040. Its totient is φ = 180416.

The previous prime is 451109. The next prime is 451159. The reversal of 451120 is 21154.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 451120.

It is an unprimeable number.

451120 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 3 ways as a sum of consecutive naturals, for example, 2740 + ... + 2899.

It is an arithmetic number, because the mean of its divisors is an integer number (52452).

2⁴⁵¹¹²⁰ is an apocalyptic number.

451120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451120 is an abundant number, since it is smaller than the sum of its proper divisors (597920).

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

451120 is a wasteful number, since it uses less digits than its factorization.

451120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5652 (or 5646 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 13.

The square root of 451120 is about 671.6546731766. The cubic root of 451120 is about 76.6944658693.

Adding to 451120 its reverse (21154), we get a palindrome (472274).

It can be divided in two parts, 4 and 51120, that multiplied together give a triangular number (204480 = T₆₃₉).

The spelling of 451120 in words is "four hundred fifty-one thousand, one hundred twenty".