2129736 has 48 divisors (see below), whose sum is σ = 6197040. Its totient is φ = 608160.

The previous prime is 2129719. The next prime is 2129741. The reversal of 2129736 is 6379212.

2129736 = 184² + 185² + ... + 232².

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 271 + ... + 2081.

It is an arithmetic number, because the mean of its divisors is an integer number (129105).

2^2129736 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 2129736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3098520).

2129736 is an abundant number, since it is smaller than the sum of its proper divisors (4067304).

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

2129736 is a wasteful number, since it uses less digits than its factorization.

2129736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834 (or 1823 counting only the distinct ones).

The product of its digits is 4536, while the sum is 30.

The square root of 2129736 is about 1459.3615042203. The cubic root of 2129736 is about 128.6595191725.

The spelling of 2129736 in words is "two million, one hundred twenty-nine thousand, seven hundred thirty-six".