2102997444 has 96 divisors (see below), whose sum is σ = 5492551680. Its totient is φ = 622361088.

The previous prime is 2102997397. The next prime is 2102997451. The reversal of 2102997444 is 4447992012.

It is a junction number, because it is equal to n+sod(n) for n = 2102997396 and 2102997405.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1018357 + ... + 1020419.

It is an arithmetic number, because the mean of its divisors is an integer number (57214080).

Almost surely, 2^2102997444 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 2102997444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2746275840).

2102997444 is an abundant number, since it is smaller than the sum of its proper divisors (3389554236).

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

2102997444 is a wasteful number, since it uses less digits than its factorization.

2102997444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2369 (or 2367 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 2102997444 is about 45858.4500828364. The cubic root of 2102997444 is about 1281.1881553841.

The spelling of 2102997444 in words is "two billion, one hundred two million, nine hundred ninety-seven thousand, four hundred forty-four".