4531000 has 64 divisors (see below), whose sum is σ = 11119680. Its totient is φ = 1724800.

The previous prime is 4530997. The next prime is 4531003. The reversal of 4531000 is 1354.

It is an interprime number because it is at equal distance from previous prime (4530997) and next prime (4531003).

It is a super-2 number, since 2×4531000² = 41059922000000, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4531003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22902 + ... + 23098.

It is an arithmetic number, because the mean of its divisors is an integer number (173745).

Almost surely, 2^4531000 is an apocalyptic number.

4531000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4531000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5559840).

4531000 is an abundant number, since it is smaller than the sum of its proper divisors (6588680).

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

4531000 is a wasteful number, since it uses less digits than its factorization.

4531000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 227 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 4531000 is about 2128.6145729089. The cubic root of 4531000 is about 165.4746053776.

Adding to 4531000 its reverse (1354), we get a palindrome (4532354).

The spelling of 4531000 in words is "four million, five hundred thirty-one thousand".