2119870 has 16 divisors (see below), whose sum is σ = 3881520. Its totient is φ = 833344.

The previous prime is 2119837. The next prime is 2119877. The reversal of 2119870 is 789112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2119877) 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, 1207 + ... + 2386.

It is an arithmetic number, because the mean of its divisors is an integer number (242595).

2^2119870 is an apocalyptic number.

2119870 is a deficient number, since it is larger than the sum of its proper divisors (1761650).

2119870 is a wasteful number, since it uses less digits than its factorization.

2119870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3659.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 2119870 is about 1455.9773349884. The cubic root of 2119870 is about 128.4605398981.

It can be divided in two parts, 21 and 19870, that added together give a palindrome (19891).

The spelling of 2119870 in words is "two million, one hundred nineteen thousand, eight hundred seventy".