2640615 has 8 divisors (see below), whose sum is σ = 4225008. Its totient is φ = 1408320.

The previous prime is 2640581. The next prime is 2640643. The reversal of 2640615 is 5160462.

2640615 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2640615 - 2⁶ = 2640551 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88006 + ... + 88035.

It is an arithmetic number, because the mean of its divisors is an integer number (528126).

2^2640615 is an apocalyptic number.

2640615 is a deficient number, since it is larger than the sum of its proper divisors (1584393).

2640615 is a wasteful number, since it uses less digits than its factorization.

2640615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176049.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2640615 is about 1624.9969230740. The cubic root of 2640615 is about 138.2191958637.

The spelling of 2640615 in words is "two million, six hundred forty thousand, six hundred fifteen".