2133021400 has 24 divisors (see below), whose sum is σ = 4959275220. Its totient is φ = 853208480.

The previous prime is 2133021391. The next prime is 2133021419. The reversal of 2133021400 is 41203312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5332354 + ... + 5332753.

Almost surely, 2^2133021400 is an apocalyptic number.

2133021400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2133021400 is an abundant number, since it is smaller than the sum of its proper divisors (2826253820).

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

2133021400 is a wasteful number, since it uses less digits than its factorization.

2133021400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10665123 (or 10665114 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2133021400 is about 46184.6446343371. The cubic root of 2133021400 is about 1287.2564330154.

Adding to 2133021400 its reverse (41203312), we get a palindrome (2174224712).

The spelling of 2133021400 in words is "two billion, one hundred thirty-three million, twenty-one thousand, four hundred".