2642518 has 4 divisors (see below), whose sum is σ = 3963780. Its totient is φ = 1321258.

The previous prime is 2642513. The next prime is 2642537. The reversal of 2642518 is 8152462.

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

It is a d-powerful number, because it can be written as 2⁵ + 6⁷ + 4⁹ + 2⁷ + 5⁵ + 1 + 8⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660628 + ... + 660631.

It is an arithmetic number, because the mean of its divisors is an integer number (990945).

2^2642518 is an apocalyptic number.

2642518 is a deficient number, since it is larger than the sum of its proper divisors (1321262).

2642518 is a wasteful number, since it uses less digits than its factorization.

2642518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1321261.

The product of its digits is 3840, while the sum is 28.

The square root of 2642518 is about 1625.5823571877. The cubic root of 2642518 is about 138.2523911571.

It can be divided in two parts, 2642 and 518, that added together give a triangular number (3160 = T₇₉).

The spelling of 2642518 in words is "two million, six hundred forty-two thousand, five hundred eighteen".