2126258944 has 72 divisors (see below), whose sum is σ = 4407092928. Its totient is φ = 1023098880.

The previous prime is 2126258941. The next prime is 2126258951. The reversal of 2126258944 is 4498526212.

It is a self number, because there is not a number n which added to its sum of digits gives 2126258944.

It is not an unprimeable number, because it can be changed into a prime (2126258941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 732504 + ... + 735400.

It is an arithmetic number, because the mean of its divisors is an integer number (61209624).

Almost surely, 2^2126258944 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 2126258944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2203546464).

2126258944 is an abundant number, since it is smaller than the sum of its proper divisors (2280833984).

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

2126258944 is an equidigital number, since it uses as much as digits as its factorization.

2126258944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3021 (or 3007 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 2126258944 is about 46111.3754294968. The cubic root of 2126258944 is about 1285.8946353663.

The spelling of 2126258944 in words is "two billion, one hundred twenty-six million, two hundred fifty-eight thousand, nine hundred forty-four".