2129630 has 16 divisors (see below), whose sum is σ = 3858624. Its totient is φ = 846240.

The previous prime is 2129627. The next prime is 2129671. The reversal of 2129630 is 369212.

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

It is a junction number, because it is equal to n+sod(n) for n = 2129596 and 2129605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1115 + ... + 2345.

It is an arithmetic number, because the mean of its divisors is an integer number (241164).

2^2129630 is an apocalyptic number.

2129630 is a deficient number, since it is larger than the sum of its proper divisors (1728994).

2129630 is a wasteful number, since it uses less digits than its factorization.

2129630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 2129630 is about 1459.3251865160. The cubic root of 2129630 is about 128.6573846144.

The spelling of 2129630 in words is "two million, one hundred twenty-nine thousand, six hundred thirty".