2042493 has 4 divisors (see below), whose sum is σ = 2723328. Its totient is φ = 1361660.

The previous prime is 2042489. The next prime is 2042531. The reversal of 2042493 is 3942402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2042493 - 2² = 2042489 is a prime.

It is a D-number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340413 + ... + 340418.

It is an arithmetic number, because the mean of its divisors is an integer number (680832).

2^2042493 is an apocalyptic number.

It is an amenable number.

2042493 is a deficient number, since it is larger than the sum of its proper divisors (680835).

2042493 is an equidigital number, since it uses as much as digits as its factorization.

2042493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680834.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 2042493 is about 1429.1581438035. The cubic root of 2042493 is about 126.8781562304.

Adding to 2042493 its reverse (3942402), we get a palindrome (5984895).

The spelling of 2042493 in words is "two million, forty-two thousand, four hundred ninety-three".