2140789 has 8 divisors (see below), whose sum is σ = 2455488. Its totient is φ = 1828320.

The previous prime is 2140781. The next prime is 2140807. The reversal of 2140789 is 9870412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2140789 - 2³ = 2140781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2140789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3354 + ... + 3940.

It is an arithmetic number, because the mean of its divisors is an integer number (306936).

2^2140789 is an apocalyptic number.

It is an amenable number.

2140789 is a deficient number, since it is larger than the sum of its proper divisors (314699).

2140789 is an equidigital number, since it uses as much as digits as its factorization.

2140789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 2140789 is about 1463.1435336289. The cubic root of 2140789 is about 128.8817095629.

The spelling of 2140789 in words is "two million, one hundred forty thousand, seven hundred eighty-nine".