2130890 has 16 divisors (see below), whose sum is σ = 3852360. Its totient is φ = 848640.

The previous prime is 2130857. The next prime is 2130901. The reversal of 2130890 is 980312.

It can be written as a sum of positive squares in 4 ways, for example, as 1907161 + 223729 = 1381^2 + 473^2 .

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, 3830 + ... + 4350.

2^2130890 is an apocalyptic number.

2130890 is a deficient number, since it is larger than the sum of its proper divisors (1721470).

2130890 is a wasteful number, since it uses less digits than its factorization.

2130890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2130890 is about 1459.7568290643. The cubic root of 2130890 is about 128.6827530813.

The spelling of 2130890 in words is "two million, one hundred thirty thousand, eight hundred ninety".