2140002 has 24 divisors (see below), whose sum is σ = 4715100. Its totient is φ = 701280.

The previous prime is 2140001. The next prime is 2140003. The reversal of 2140002 is 2000412.

It is an interprime number because it is at equal distance from previous prime (2140001) and next prime (2140003).

It can be written as a sum of positive squares in 2 ways, for example, as 2099601 + 40401 = 1449^2 + 201^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (2140001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 124 + ... + 2072.

2^2140002 is an apocalyptic number.

2140002 is an abundant number, since it is smaller than the sum of its proper divisors (2575098).

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

2140002 is a wasteful number, since it uses less digits than its factorization.

2140002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2018 (or 2015 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 2140002 is about 1462.8745674185. The cubic root of 2140002 is about 128.8659143993.

Adding to 2140002 its reverse (2000412), we get a palindrome (4140414).

The spelling of 2140002 in words is "two million, one hundred forty thousand, two".