2133646 has 8 divisors (see below), whose sum is σ = 3310920. Its totient is φ = 1030008.

The previous prime is 2133631. The next prime is 2133647. The reversal of 2133646 is 6463312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2133646.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18336 + ... + 18451.

It is an arithmetic number, because the mean of its divisors is an integer number (413865).

2^2133646 is an apocalyptic number.

2133646 is a deficient number, since it is larger than the sum of its proper divisors (1177274).

2133646 is a wasteful number, since it uses less digits than its factorization.

2133646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36818.

The product of its digits is 2592, while the sum is 25.

The square root of 2133646 is about 1460.7005168754. The cubic root of 2133646 is about 128.7382067308.

Adding to 2133646 its reverse (6463312), we get a palindrome (8596958).

The spelling of 2133646 in words is "two million, one hundred thirty-three thousand, six hundred forty-six".