2121445704 has 32 divisors (see below), whose sum is σ = 6061273920. Its totient is φ = 606127296.

The previous prime is 2121445699. The next prime is 2121445717. The reversal of 2121445704 is 4075441212.

2121445704 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6313659 + ... + 6313994.

It is an arithmetic number, because the mean of its divisors is an integer number (189414810).

Almost surely, 2^2121445704 is an apocalyptic number.

2121445704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2121445704 is an abundant number, since it is smaller than the sum of its proper divisors (3939828216).

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

2121445704 is a wasteful number, since it uses less digits than its factorization.

2121445704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12627669 (or 12627665 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 2121445704 is about 46059.1543995328. The cubic root of 2121445704 is about 1284.9236034865.

Adding to 2121445704 its reverse (4075441212), we get a palindrome (6196886916).

The spelling of 2121445704 in words is "two billion, one hundred twenty-one million, four hundred forty-five thousand, seven hundred four".