2231900 has 36 divisors (see below), whose sum is σ = 5286120. Its totient is φ = 811200.

The previous prime is 2231891. The next prime is 2231909. The reversal of 2231900 is 91322.

It is an interprime number because it is at equal distance from previous prime (2231891) and next prime (2231909).

It is a super-3 number, since 3×2231900³ = 33353810063277000000, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231909) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86 + ... + 2114.

2^2231900 is an apocalyptic number.

2231900 is a gapful number since it is divisible by the number (20) 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 2231900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2643060).

2231900 is an abundant number, since it is smaller than the sum of its proper divisors (3054220).

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

2231900 is a wasteful number, since it uses less digits than its factorization.

2231900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2054 (or 2047 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2231900 is about 1493.9544839117. The cubic root of 2231900 is about 130.6847497996.

The spelling of 2231900 in words is "two million, two hundred thirty-one thousand, nine hundred".