2147238 has 12 divisors (see below), whose sum is σ = 4652388. Its totient is φ = 715740.

The previous prime is 2147237. The next prime is 2147251. The reversal of 2147238 is 8327412.

It is a super-2 number, since 2×2147238² = 9221262057288, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2147231) 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, 59628 + ... + 59663.

It is an arithmetic number, because the mean of its divisors is an integer number (387699).

2^2147238 is an apocalyptic number.

2147238 is an abundant number, since it is smaller than the sum of its proper divisors (2505150).

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

2147238 is a wasteful number, since it uses less digits than its factorization.

2147238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119299 (or 119296 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 2147238 is about 1465.3456930022. The cubic root of 2147238 is about 129.0109959980.

The spelling of 2147238 in words is "two million, one hundred forty-seven thousand, two hundred thirty-eight".