2129730 has 16 divisors (see below), whose sum is σ = 5111424. Its totient is φ = 567920.

The previous prime is 2129719. The next prime is 2129741. The reversal of 2129730 is 379212.

2129730 is nontrivially palindromic in base 4.

It is an interprime number because it is at equal distance from previous prime (2129719) and next prime (2129741).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2129730.

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, 35466 + ... + 35525.

It is an arithmetic number, because the mean of its divisors is an integer number (319464).

2^2129730 is an apocalyptic number.

2129730 is an abundant number, since it is smaller than the sum of its proper divisors (2981694).

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

2129730 is a wasteful number, since it uses less digits than its factorization.

2129730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71001.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 2129730 is about 1459.3594485253. The cubic root of 2129730 is about 128.6593983503.

The spelling of 2129730 in words is "two million, one hundred twenty-nine thousand, seven hundred thirty".