2238630 has 32 divisors (see below), whose sum is σ = 5453568. Its totient is φ = 588000.

The previous prime is 2238619. The next prime is 2238631. The reversal of 2238630 is 368322.

It is a super-2 number, since 2×2238630² = 10022928553800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2238630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1605 + ... + 2655.

It is an arithmetic number, because the mean of its divisors is an integer number (170424).

2^2238630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2238630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2726784).

2238630 is an abundant number, since it is smaller than the sum of its proper divisors (3214938).

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

2238630 is a wasteful number, since it uses less digits than its factorization.

2238630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 2238630 is about 1496.2051998306. The cubic root of 2238630 is about 130.8159722006.

The spelling of 2238630 in words is "two million, two hundred thirty-eight thousand, six hundred thirty".