2542623 has 8 divisors (see below), whose sum is σ = 3408000. Its totient is φ = 1686168.

The previous prime is 2542621. The next prime is 2542649. The reversal of 2542623 is 3262452.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2542623 - 2¹ = 2542621 is a prime.

2542623 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2542593 and 2542602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2542621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1533 + ... + 2726.

It is an arithmetic number, because the mean of its divisors is an integer number (426000).

2^2542623 is an apocalyptic number.

2542623 is a deficient number, since it is larger than the sum of its proper divisors (865377).

2542623 is a wasteful number, since it uses less digits than its factorization.

2542623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4461.

The product of its digits is 2880, while the sum is 24.

The square root of 2542623 is about 1594.5604409993. The cubic root of 2542623 is about 136.4878492854.

The spelling of 2542623 in words is "two million, five hundred forty-two thousand, six hundred twenty-three".