2187234 has 24 divisors (see below), whose sum is σ = 5416320. Its totient is φ = 624888.

The previous prime is 2187233. The next prime is 2187247. The reversal of 2187234 is 4327812.

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

It is a junction number, because it is equal to n+sod(n) for n = 2187198 and 2187207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2187233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8554 + ... + 8805.

It is an arithmetic number, because the mean of its divisors is an integer number (225680).

2^2187234 is an apocalyptic number.

2187234 is an abundant number, since it is smaller than the sum of its proper divisors (3229086).

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

2187234 is a wasteful number, since it uses less digits than its factorization.

2187234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17374 (or 17371 counting only the distinct ones).

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

The square root of 2187234 is about 1478.9300186283. The cubic root of 2187234 is about 129.8070906056.

The spelling of 2187234 in words is "two million, one hundred eighty-seven thousand, two hundred thirty-four".