2493919 has 4 divisors (see below), whose sum is σ = 2574400. Its totient is φ = 2413440.

The previous prime is 2493877. The next prime is 2493923. The reversal of 2493919 is 9193942.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9193942 = 2 ⋅4596971.

It is a cyclic number.

It is not a de Polignac number, because 2493919 - 2¹¹ = 2491871 is a prime.

It is a super-2 number, since 2×2493919² = 12439263957122, which contains 22 as substring.

It is a Duffinian number.

2493919 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2493929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40194 + ... + 40255.

It is an arithmetic number, because the mean of its divisors is an integer number (643600).

2^2493919 is an apocalyptic number.

2493919 is a deficient number, since it is larger than the sum of its proper divisors (80481).

2493919 is an equidigital number, since it uses as much as digits as its factorization.

2493919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80480.

The product of its digits is 17496, while the sum is 37.

The square root of 2493919 is about 1579.2146782499. The cubic root of 2493919 is about 135.6107489964.

The spelling of 2493919 in words is "two million, four hundred ninety-three thousand, nine hundred nineteen".