2489836 has 18 divisors (see below), whose sum is σ = 4612020. Its totient is φ = 1172880.

The previous prime is 2489831. The next prime is 2489849. The reversal of 2489836 is 6389842.

It is a d-powerful number, because it can be written as 2¹⁸ + 4⁹ + 8⁴ + 9 + 8⁶ + 3⁹ + 6⁸ .

It is not an unprimeable number, because it can be changed into a prime (2489831) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13666 + ... + 13846.

2^2489836 is an apocalyptic number.

It is an amenable number.

2489836 is a deficient number, since it is larger than the sum of its proper divisors (2122184).

2489836 is a wasteful number, since it uses less digits than its factorization.

2489836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385 (or 202 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 2489836 is about 1577.9214175617. The cubic root of 2489836 is about 135.5367020670.

Subtracting from 2489836 its sum of digits (40), we obtain a triangular number (2489796 = T₂₂₃₁).

The spelling of 2489836 in words is "two million, four hundred eighty-nine thousand, eight hundred thirty-six".