2642493 has 16 divisors (see below), whose sum is σ = 4202496. Its totient is φ = 1444080.

The previous prime is 2642483. The next prime is 2642513. The reversal of 2642493 is 3942462.

It is not a de Polignac number, because 2642493 - 2¹⁰ = 2641469 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2642493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2253 + ... + 3218.

It is an arithmetic number, because the mean of its divisors is an integer number (262656).

2^2642493 is an apocalyptic number.

2642493 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2642493 is a deficient number, since it is larger than the sum of its proper divisors (1560003).

2642493 is a wasteful number, since it uses less digits than its factorization.

2642493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5504.

The product of its digits is 10368, while the sum is 30.

The square root of 2642493 is about 1625.5746676176. The cubic root of 2642493 is about 138.2519551688.

The spelling of 2642493 in words is "two million, six hundred forty-two thousand, four hundred ninety-three".