2134220028 has 12 divisors (see below), whose sum is σ = 4979846760. Its totient is φ = 711406672.

The previous prime is 2134220021. The next prime is 2134220029. The reversal of 2134220028 is 8200224312.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134220021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88925823 + ... + 88925846.

It is an arithmetic number, because the mean of its divisors is an integer number (414987230).

Almost surely, 2^2134220028 is an apocalyptic number.

It is an amenable number.

2134220028 is an abundant number, since it is smaller than the sum of its proper divisors (2845626732).

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

2134220028 is a wasteful number, since it uses less digits than its factorization.

2134220028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177851676 (or 177851674 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 2134220028 is about 46197.6192893097. The cubic root of 2134220028 is about 1287.4975077465.

The spelling of 2134220028 in words is "two billion, one hundred thirty-four million, two hundred twenty thousand, twenty-eight".