2243700 has 90 divisors (see below), whose sum is σ = 7299446. Its totient is φ = 596160.

The previous prime is 2243699. The next prime is 2243723. The reversal of 2243700 is 73422.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 11664 + 2232036 = 108^2 + 1494^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a d-powerful number, because it can be written as 2¹³ + 2²¹ + 4⁵ + 3⁹ + 7⁶ + 0 + 0 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 7962 + ... + 8238.

2^2243700 is an apocalyptic number.

2243700 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 2243700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3649723).

2243700 is an abundant number, since it is smaller than the sum of its proper divisors (5055746).

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

2243700 is a wasteful number, since it uses less digits than its factorization.

2243700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 2243700 is about 1497.8985279384. The cubic root of 2243700 is about 130.9146541196.

The spelling of 2243700 in words is "two million, two hundred forty-three thousand, seven hundred".