2100403332 has 96 divisors (see below), whose sum is σ = 5695200000. Its totient is φ = 668169216.

The previous prime is 2100403247. The next prime is 2100403339. The reversal of 2100403332 is 2333040012.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2100403339) 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, 1681044 + ... + 1682292.

It is an arithmetic number, because the mean of its divisors is an integer number (59325000).

Almost surely, 2^2100403332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2100403332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2847600000).

2100403332 is an abundant number, since it is smaller than the sum of its proper divisors (3594796668).

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

2100403332 is a wasteful number, since it uses less digits than its factorization.

2100403332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1962 (or 1954 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2100403332 is about 45830.1574511805. The cubic root of 2100403332 is about 1280.6611436371.

Adding to 2100403332 its reverse (2333040012), we get a palindrome (4433443344).

It can be divided in two parts, 2100403 and 332, that multiplied together give a palindrome (697333796).

The spelling of 2100403332 in words is "two billion, one hundred million, four hundred three thousand, three hundred thirty-two".