2238737 has 4 divisors (see below), whose sum is σ = 2243556. Its totient is φ = 2233920.

The previous prime is 2238721. The next prime is 2238749. The reversal of 2238737 is 7378322.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 913936 + 1324801 = 956^2 + 1151^2 .

It is a cyclic number.

It is not a de Polignac number, because 2238737 - 2⁴ = 2238721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2238707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1628 + ... + 2669.

It is an arithmetic number, because the mean of its divisors is an integer number (560889).

2^2238737 is an apocalyptic number.

It is an amenable number.

2238737 is a deficient number, since it is larger than the sum of its proper divisors (4819).

2238737 is an equidigital number, since it uses as much as digits as its factorization.

2238737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4818.

The product of its digits is 14112, while the sum is 32.

The square root of 2238737 is about 1496.2409565307. The cubic root of 2238737 is about 130.8180563750.

The spelling of 2238737 in words is "two million, two hundred thirty-eight thousand, seven hundred thirty-seven".