2642423 has 6 divisors (see below), whose sum is σ = 3073896. Its totient is φ = 2264892.

The previous prime is 2642389. The next prime is 2642449. The reversal of 2642423 is 3242462.

It is not a de Polignac number, because 2642423 - 2⁶ = 2642359 is a prime.

It is a d-powerful number, because it can be written as 2⁹ + 6 + 4⁵ + 2¹³ + 4⁶ + 2²¹ + 3¹² .

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 5 ways as a sum of consecutive naturals, for example, 26915 + ... + 27012.

It is an arithmetic number, because the mean of its divisors is an integer number (512316).

2^2642423 is an apocalyptic number.

2642423 is a deficient number, since it is larger than the sum of its proper divisors (431473).

2642423 is an equidigital number, since it uses as much as digits as its factorization.

2642423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53941 (or 53934 counting only the distinct ones).

The product of its digits is 2304, while the sum is 23.

The square root of 2642423 is about 1625.5531366277. The cubic root of 2642423 is about 138.2507343870.

Adding to 2642423 its reverse (3242462), we get a palindrome (5884885).

The spelling of 2642423 in words is "two million, six hundred forty-two thousand, four hundred twenty-three".