2100409320 has 64 divisors (see below), whose sum is σ = 6435313920. Its totient is φ = 548190464.

The previous prime is 2100409319. The next prime is 2100409357. The reversal of 2100409320 is 239040012.

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, 180567 + ... + 191846.

It is an arithmetic number, because the mean of its divisors is an integer number (100551780).

Almost surely, 2^2100409320 is an apocalyptic number.

2100409320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100409320 is an abundant number, since it is smaller than the sum of its proper divisors (4334904600).

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

2100409320 is a wasteful number, since it uses less digits than its factorization.

2100409320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372474 (or 372470 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 2100409320 is about 45830.2227792971. Note that the first 3 decimals coincide. The cubic root of 2100409320 is about 1280.6623606401.

Adding to 2100409320 its reverse (239040012), we get a palindrome (2339449332).

The spelling of 2100409320 in words is "two billion, one hundred million, four hundred nine thousand, three hundred twenty".