2231500 has 24 divisors (see below), whose sum is σ = 4874688. Its totient is φ = 892400.

The previous prime is 2231491. The next prime is 2231501. The reversal of 2231500 is 51322.

It is a super-3 number, since 3×2231500³ = 33335880317625000000, which contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (2231501) 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, 1732 + ... + 2731.

It is an arithmetic number, because the mean of its divisors is an integer number (203112).

2^2231500 is an apocalyptic number.

2231500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231500 is an abundant number, since it is smaller than the sum of its proper divisors (2643188).

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

2231500 is a wasteful number, since it uses less digits than its factorization.

2231500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4482 (or 4470 counting only the distinct ones).

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

The square root of 2231500 is about 1493.8206050259. The cubic root of 2231500 is about 130.6769422480.

Adding to 2231500 its reverse (51322), we get a palindrome (2282822).

The spelling of 2231500 in words is "two million, two hundred thirty-one thousand, five hundred".