2493820 has 48 divisors (see below), whose sum is σ = 6128640. Its totient is φ = 834624.

The previous prime is 2493817. The next prime is 2493833. The reversal of 2493820 is 283942.

2493820 = T₂₇₀ + T₂₇₁ + ... + T₃₂₅.

2493820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6391 + ... + 6769.

It is an arithmetic number, because the mean of its divisors is an integer number (127680).

2^2493820 is an apocalyptic number.

2493820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2493820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3064320).

2493820 is an abundant number, since it is smaller than the sum of its proper divisors (3634820).

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

2493820 is a wasteful number, since it uses less digits than its factorization.

2493820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 2493820 is about 1579.1833332454. The cubic root of 2493820 is about 135.6089545460.

The spelling of 2493820 in words is "two million, four hundred ninety-three thousand, eight hundred twenty".