2129250 has 64 divisors (see below), whose sum is σ = 5660928. Its totient is φ = 531200.

The previous prime is 2129227. The next prime is 2129261. The reversal of 2129250 is 529212.

It is an alternating number because its digits alternate between even and odd.

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, 12667 + ... + 12833.

It is an arithmetic number, because the mean of its divisors is an integer number (88452).

2^2129250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2129250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2830464).

2129250 is an abundant number, since it is smaller than the sum of its proper divisors (3531678).

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

2129250 is a wasteful number, since it uses less digits than its factorization.

2129250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 2129250 is about 1459.1949835440. The cubic root of 2129250 is about 128.6497318431.

The spelling of 2129250 in words is "two million, one hundred twenty-nine thousand, two hundred fifty".