2231800 has 24 divisors (see below), whose sum is σ = 5189400. Its totient is φ = 892640.

The previous prime is 2231791. The next prime is 2231809. The reversal of 2231800 is 81322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2231791) and next prime (2231809).

It is a super-3 number, since 3×2231800³ = 33349327024296000000, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231809) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5380 + ... + 5779.

It is an arithmetic number, because the mean of its divisors is an integer number (216225).

2^2231800 is an apocalyptic number.

2231800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2231800 is an abundant number, since it is smaller than the sum of its proper divisors (2957600).

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

2231800 is a wasteful number, since it uses less digits than its factorization.

2231800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11175 (or 11166 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2231800 is about 1493.9210153151. The cubic root of 2231800 is about 130.6827979992.

The spelling of 2231800 in words is "two million, two hundred thirty-one thousand, eight hundred".