2111399250 has 64 divisors (see below), whose sum is σ = 5279264640. Its totient is φ = 562056000.

The previous prime is 2111399249. The next prime is 2111399261. The reversal of 2111399250 is 529931112.

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, 493621 + ... + 497879.

It is an arithmetic number, because the mean of its divisors is an integer number (82488510).

Almost surely, 2^2111399250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111399250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2639632320).

2111399250 is an abundant number, since it is smaller than the sum of its proper divisors (3167865390).

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

2111399250 is a wasteful number, since it uses less digits than its factorization.

2111399250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4940 (or 4930 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 2111399250 is about 45949.9646354597. The cubic root of 2111399250 is about 1282.8920710779.

The spelling of 2111399250 in words is "two billion, one hundred eleven million, three hundred ninety-nine thousand, two hundred fifty".