2506818 has 16 divisors (see below), whose sum is σ = 5186880. Its totient is φ = 806736.

The previous prime is 2506813. The next prime is 2506831. The reversal of 2506818 is 8186052.

It is not an unprimeable number, because it can be changed into a prime (2506813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7030 + ... + 7377.

It is an arithmetic number, because the mean of its divisors is an integer number (324180).

2^2506818 is an apocalyptic number.

2506818 is an abundant number, since it is smaller than the sum of its proper divisors (2680062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2506818 is a wasteful number, since it uses less digits than its factorization.

2506818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14441.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 2506818 is about 1583.2934030053. The cubic root of 2506818 is about 135.8441481681.

The spelling of 2506818 in words is "two million, five hundred six thousand, eight hundred eighteen".