2130690 has 16 divisors (see below), whose sum is σ = 5113728. Its totient is φ = 568176.

The previous prime is 2130683. The next prime is 2130701. The reversal of 2130690 is 960312.

It is a super-2 number, since 2×2130690² = 9079679752200, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35482 + ... + 35541.

It is an arithmetic number, because the mean of its divisors is an integer number (319608).

2^2130690 is an apocalyptic number.

2130690 is an abundant number, since it is smaller than the sum of its proper divisors (2983038).

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

2130690 is a wasteful number, since it uses less digits than its factorization.

2130690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71033.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 2130690 is about 1459.6883228964. The cubic root of 2130690 is about 128.6787270084.

The spelling of 2130690 in words is "two million, one hundred thirty thousand, six hundred ninety".