2040002 has 4 divisors (see below), whose sum is σ = 3060006. Its totient is φ = 1020000.

The previous prime is 2039993. The next prime is 2040019. The reversal of 2040002 is 2000402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1666681 + 373321 = 1291^2 + 611^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509999 + ... + 510002.

2^2040002 is an apocalyptic number.

2040002 is a deficient number, since it is larger than the sum of its proper divisors (1020004).

2040002 is a wasteful number, since it uses less digits than its factorization.

2040002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020003.

The product of its (nonzero) digits is 16, while the sum is 8.

The square root of 2040002 is about 1428.2863858484. The cubic root of 2040002 is about 126.8265555543.

Adding to 2040002 its reverse (2000402), we get a palindrome (4040404).

The spelling of 2040002 in words is "two million, forty thousand, two", and thus it is an eban number.