2009100030 has 64 divisors (see below), whose sum is σ = 5514905088. Its totient is φ = 458870400.

The previous prime is 2009099951. The next prime is 2009100031. The reversal of 2009100030 is 300019002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 2009099982 and 2009100009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009100031) 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, 352705 + ... + 358355.

It is an arithmetic number, because the mean of its divisors is an integer number (86170392).

Almost surely, 2^2009100030 is an apocalyptic number.

2009100030 is an abundant number, since it is smaller than the sum of its proper divisors (3505805058).

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

2009100030 is a wasteful number, since it uses less digits than its factorization.

2009100030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7361.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 2009100030 is about 44822.9855096690. The cubic root of 2009100030 is about 1261.8290455698.

Adding to 2009100030 its reverse (300019002), we get a palindrome (2309119032).

The spelling of 2009100030 in words is "two billion, nine million, one hundred thousand, thirty".