2499816 has 64 divisors (see below), whose sum is σ = 7231680. Its totient is φ = 711680.

The previous prime is 2499803. The next prime is 2499821. The reversal of 2499816 is 6189942.

2499816 = T₁₉₃ + T₁₉₄ + ... + T₂₈₀.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4210 + ... + 4766.

It is an arithmetic number, because the mean of its divisors is an integer number (112995).

2^2499816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2499816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3615840).

2499816 is an abundant number, since it is smaller than the sum of its proper divisors (4731864).

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

2499816 is a wasteful number, since it uses less digits than its factorization.

2499816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594 (or 590 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 2499816 is about 1581.0806431046. The cubic root of 2499816 is about 135.7175510624.

It can be divided in two parts, 2499 and 816, that multiplied together give a square (2039184 = 1428²).

The spelling of 2499816 in words is "two million, four hundred ninety-nine thousand, eight hundred sixteen".