2506306 has 16 divisors (see below), whose sum is σ = 4213440. Its totient is φ = 1108080.

The previous prime is 2506291. The next prime is 2506313. The reversal of 2506306 is 6036052.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 726 + ... + 2353.

It is an arithmetic number, because the mean of its divisors is an integer number (263340).

2^2506306 is an apocalyptic number.

2506306 is a deficient number, since it is larger than the sum of its proper divisors (1707134).

2506306 is a wasteful number, since it uses less digits than its factorization.

2506306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3129.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 2506306 is about 1583.1317064603. The cubic root of 2506306 is about 135.8348991334.

It can be divided in two parts, 250 and 6306, that added together give a palindrome (6556).

The spelling of 2506306 in words is "two million, five hundred six thousand, three hundred six".