2133810 has 64 divisors (see below), whose sum is σ = 6508800. Its totient is φ = 487296.

The previous prime is 2133799. The next prime is 2133811. The reversal of 2133810 is 183312.

It is a super-2 number, since 2×2133810² = 9106290232200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1326 + ... + 2454.

It is an arithmetic number, because the mean of its divisors is an integer number (101700).

2^2133810 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2133810, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3254400).

2133810 is an abundant number, since it is smaller than the sum of its proper divisors (4374990).

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

2133810 is a wasteful number, since it uses less digits than its factorization.

2133810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152 (or 1146 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2133810 is about 1460.7566532452. The cubic root of 2133810 is about 128.7415050794.

The spelling of 2133810 in words is "two million, one hundred thirty-three thousand, eight hundred ten".