2140730 has 24 divisors (see below), whose sum is σ = 4073652. Its totient is φ = 809856.

The previous prime is 2140729. The next prime is 2140741. The reversal of 2140730 is 370412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2140369 + 361 = 1463^2 + 19^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2140699 and 2140708.

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, 3314 + ... + 3906.

2^2140730 is an apocalyptic number.

2140730 is a deficient number, since it is larger than the sum of its proper divisors (1932922).

2140730 is a wasteful number, since it uses less digits than its factorization.

2140730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638 (or 619 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 2140730 is about 1463.1233714216. The cubic root of 2140730 is about 128.8805255616.

The spelling of 2140730 in words is "two million, one hundred forty thousand, seven hundred thirty".