2133455420 has 12 divisors (see below), whose sum is σ = 4480256424. Its totient is φ = 853382160.

The previous prime is 2133455411. The next prime is 2133455447. The reversal of 2133455420 is 245543312.

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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53336366 + ... + 53336405.

It is an arithmetic number, because the mean of its divisors is an integer number (373354702).

Almost surely, 2^2133455420 is an apocalyptic number.

2133455420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2133455420 is an abundant number, since it is smaller than the sum of its proper divisors (2346801004).

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

2133455420 is a wasteful number, since it uses less digits than its factorization.

2133455420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106672780 (or 106672778 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2133455420 is about 46189.3431431970. The cubic root of 2133455420 is about 1287.3437359600.

Adding to 2133455420 its reverse (245543312), we get a palindrome (2378998732).

The spelling of 2133455420 in words is "two billion, one hundred thirty-three million, four hundred fifty-five thousand, four hundred twenty".