451140 has 48 divisors (see below), whose sum is σ = 1292928. Its totient is φ = 117504.

The previous prime is 451109. The next prime is 451159. The reversal of 451140 is 41154.

451140 = T₇₄ + T₇₅ + ... + T₁₄₅.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4329 + ... + 4431.

It is an arithmetic number, because the mean of its divisors is an integer number (26936).

2⁴⁵¹¹⁴⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 451140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (646464).

451140 is an abundant number, since it is smaller than the sum of its proper divisors (841788).

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

451140 is a wasteful number, since it uses less digits than its factorization.

451140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 451140 is about 671.6695616149. The cubic root of 451140 is about 76.6955992459.

Adding to 451140 its reverse (41154), we get a palindrome (492294).

The spelling of 451140 in words is "four hundred fifty-one thousand, one hundred forty".