2009630 has 32 divisors (see below), whose sum is σ = 4354560. Its totient is φ = 652320.

The previous prime is 2009603. The next prime is 2009639. The reversal of 2009630 is 369002.

It is a happy number.

It is a super-2 number, since 2×2009630² = 8077225473800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 575 + ... + 2085.

It is an arithmetic number, because the mean of its divisors is an integer number (136080).

2^2009630 is an apocalyptic number.

2009630 is an abundant number, since it is smaller than the sum of its proper divisors (2344930).

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

2009630 is a wasteful number, since it uses less digits than its factorization.

2009630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 2009630 is about 1417.6141929312. The cubic root of 2009630 is about 126.1939986246.

The spelling of 2009630 in words is "two million, nine thousand, six hundred thirty".