2518642 has 8 divisors (see below), whose sum is σ = 4317696. Its totient is φ = 1079412.

The previous prime is 2518619. The next prime is 2518643. The reversal of 2518642 is 2468152.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2518642.

It is not an unprimeable number, because it can be changed into a prime (2518643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89938 + ... + 89965.

It is an arithmetic number, because the mean of its divisors is an integer number (539712).

2^2518642 is an apocalyptic number.

2518642 is a deficient number, since it is larger than the sum of its proper divisors (1799054).

2518642 is a wasteful number, since it uses less digits than its factorization.

2518642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179912.

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

The square root of 2518642 is about 1587.0229992032. The cubic root of 2518642 is about 136.0573935959.

It can be divided in two parts, 2518 and 642, that added together give a triangular number (3160 = T₇₉).

The spelling of 2518642 in words is "two million, five hundred eighteen thousand, six hundred forty-two".