2493866 has 16 divisors (see below), whose sum is σ = 4059720. Its totient is φ = 1144320.

The previous prime is 2493859. The next prime is 2493877. The reversal of 2493866 is 6683942.

It can be written as a sum of positive squares in 4 ways, for example, as 2337841 + 156025 = 1529^2 + 395^2 .

It is a d-powerful number, because it can be written as 2¹⁷ + 4⁹ + 9 + 3⁷ + 8⁷ + 6 + 6⁴ .

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, 500 + ... + 2288.

2^2493866 is an apocalyptic number.

2493866 is a deficient number, since it is larger than the sum of its proper divisors (1565854).

2493866 is a wasteful number, since it uses less digits than its factorization.

2493866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1849.

The product of its digits is 62208, while the sum is 38.

The square root of 2493866 is about 1579.1978976683. The cubic root of 2493866 is about 135.6097883369.

The spelling of 2493866 in words is "two million, four hundred ninety-three thousand, eight hundred sixty-six".