2493838 has 4 divisors (see below), whose sum is σ = 3740760. Its totient is φ = 1246918.

The previous prime is 2493833. The next prime is 2493851. The reversal of 2493838 is 8383942.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2493797 and 2493806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2493833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 623458 + ... + 623461.

It is an arithmetic number, because the mean of its divisors is an integer number (935190).

2^2493838 is an apocalyptic number.

2493838 is a deficient number, since it is larger than the sum of its proper divisors (1246922).

2493838 is a wasteful number, since it uses less digits than its factorization.

2493838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246921.

The product of its digits is 41472, while the sum is 37.

The square root of 2493838 is about 1579.1890323834. The cubic root of 2493838 is about 135.6092808132.

It can be divided in two parts, 24938 and 38, that added together give a triangular number (24976 = T₂₂₃).

The spelling of 2493838 in words is "two million, four hundred ninety-three thousand, eight hundred thirty-eight".