2238156 has 18 divisors (see below), whose sum is σ = 5657652. Its totient is φ = 746040.

The previous prime is 2238127. The next prime is 2238161. The reversal of 2238156 is 6518322.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a plaindrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31050 + ... + 31121.

It is an arithmetic number, because the mean of its divisors is an integer number (314314).

2^2238156 is an apocalyptic number.

It is an amenable number.

2238156 is an abundant number, since it is smaller than the sum of its proper divisors (3419496).

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

2238156 is a wasteful number, since it uses less digits than its factorization.

2238156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62181 (or 62176 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 2238156 is about 1496.0467907121. The cubic root of 2238156 is about 130.8067387040.

The spelling of 2238156 in words is "two million, two hundred thirty-eight thousand, one hundred fifty-six".