2081630 has 32 divisors (see below), whose sum is σ = 3953664. Its totient is φ = 788256.

The previous prime is 2081627. The next prime is 2081647. The reversal of 2081630 is 361802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20159 + ... + 20261.

It is an arithmetic number, because the mean of its divisors is an integer number (123552).

2^2081630 is an apocalyptic number.

2081630 is a deficient number, since it is larger than the sum of its proper divisors (1872034).

2081630 is a wasteful number, since it uses less digits than its factorization.

2081630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 2081630 is about 1442.7855003430. The cubic root of 2081630 is about 127.6834217644.

The spelling of 2081630 in words is "two million, eighty-one thousand, six hundred thirty".