2134550420 has 48 divisors (see below), whose sum is σ = 4711730688. Its totient is φ = 810712320.

The previous prime is 2134550399. The next prime is 2134550437. The reversal of 2134550420 is 240554312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2134550420.

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 15 ways as a sum of consecutive naturals, for example, 46085 + ... + 79955.

It is an arithmetic number, because the mean of its divisors is an integer number (98161056).

Almost surely, 2^2134550420 is an apocalyptic number.

2134550420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2134550420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2355865344).

2134550420 is an abundant number, since it is smaller than the sum of its proper divisors (2577180268).

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

2134550420 is a wasteful number, since it uses less digits than its factorization.

2134550420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34040 (or 34038 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2134550420 is about 46201.1950061900. The cubic root of 2134550420 is about 1287.5639421538.

The spelling of 2134550420 in words is "two billion, one hundred thirty-four million, five hundred fifty thousand, four hundred twenty".