4551140 has 48 divisors (see below), whose sum is σ = 10571904. Its totient is φ = 1632000.

The previous prime is 4551137. The next prime is 4551179. The reversal of 4551140 is 411554.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30065 + ... + 30215.

It is an arithmetic number, because the mean of its divisors is an integer number (220248).

Almost surely, 2^4551140 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 4551140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5285952).

4551140 is an abundant number, since it is smaller than the sum of its proper divisors (6020764).

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

4551140 is a wasteful number, since it uses less digits than its factorization.

4551140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 4551140 is about 2133.3401041559. The cubic root of 4551140 is about 165.7194176260.

Adding to 4551140 its reverse (411554), we get a palindrome (4962694).

The spelling of 4551140 in words is "four million, five hundred fifty-one thousand, one hundred forty".