2043630 has 72 divisors (see below), whose sum is σ = 5706792. Its totient is φ = 526176.

The previous prime is 2043617. The next prime is 2043631. The reversal of 2043630 is 363402.

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 (2043631) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 70456 + ... + 70484.

It is an arithmetic number, because the mean of its divisors is an integer number (79261).

2^2043630 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2043630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2853396).

2043630 is an abundant number, since it is smaller than the sum of its proper divisors (3663162).

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

2043630 is an equidigital number, since it uses as much as digits as its factorization.

2043630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80 (or 39 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2043630 is about 1429.5558750885. Note that the first 3 decimals coincide. The cubic root of 2043630 is about 126.9016950631.

The spelling of 2043630 in words is "two million, forty-three thousand, six hundred thirty".