2106093900 has 72 divisors (see below), whose sum is σ = 6358593024. Its totient is φ = 537204800.

The previous prime is 2106093889. The next prime is 2106093901. The reversal of 2106093900 is 93906012.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (2106093901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145716 + ... + 159515.

It is an arithmetic number, because the mean of its divisors is an integer number (88313792).

Almost surely, 2^2106093900 is an apocalyptic number.

2106093900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2106093900 is an abundant number, since it is smaller than the sum of its proper divisors (4252499124).

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

2106093900 is a wasteful number, since it uses less digits than its factorization.

2106093900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305271 (or 305264 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 2106093900 is about 45892.1986834364. The cubic root of 2106093900 is about 1281.8166546845.

Adding to 2106093900 its reverse (93906012), we get a palindrome (2199999912).

It can be divided in two parts, 21060 and 93900, that added together give a triangular number (114960 = T₄₇₉).

The spelling of 2106093900 in words is "two billion, one hundred six million, ninety-three thousand, nine hundred".