2640002 has 8 divisors (see below), whose sum is σ = 3981312. Its totient is φ = 1312900.

The previous prime is 2639999. The next prime is 2640013. The reversal of 2640002 is 2000462.

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

It is a super-2 number, since 2×2640002² = 13939221120008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3074 + ... + 3837.

It is an arithmetic number, because the mean of its divisors is an integer number (497664).

2^2640002 is an apocalyptic number.

2640002 is a deficient number, since it is larger than the sum of its proper divisors (1341310).

2640002 is a wasteful number, since it uses less digits than its factorization.

2640002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7104.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2640002 is about 1624.8082963845. The cubic root of 2640002 is about 138.2084995013.

Adding to 2640002 its reverse (2000462), we get a palindrome (4640464).

The spelling of 2640002 in words is "two million, six hundred forty thousand, two".