2640034 has 8 divisors (see below), whose sum is σ = 3968028. Its totient is φ = 1317360.

The previous prime is 2640023. The next prime is 2640041. The reversal of 2640034 is 4300462.

It can be written as a sum of positive squares in 2 ways, for example, as 2576025 + 64009 = 1605^2 + 253^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2639993 and 2640020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324 + ... + 2320.

2^2640034 is an apocalyptic number.

2640034 is a deficient number, since it is larger than the sum of its proper divisors (1327994).

2640034 is a wasteful number, since it uses less digits than its factorization.

2640034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2660.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2640034 is about 1624.8181436702. The cubic root of 2640034 is about 138.2090579168.

Adding to 2640034 its reverse (4300462), we get a palindrome (6940496).

The spelling of 2640034 in words is "two million, six hundred forty thousand, thirty-four".