2558342 has 4 divisors (see below), whose sum is σ = 3837516. Its totient is φ = 1279170.

The previous prime is 2558341. The next prime is 2558377. The reversal of 2558342 is 2438552.

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

It is a super-2 number, since 2×2558342² = 13090227577928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2558341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 639584 + ... + 639587.

It is an arithmetic number, because the mean of its divisors is an integer number (959379).

2^2558342 is an apocalyptic number.

2558342 is a deficient number, since it is larger than the sum of its proper divisors (1279174).

2558342 is a wasteful number, since it uses less digits than its factorization.

2558342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279173.

The product of its digits is 9600, while the sum is 29.

The square root of 2558342 is about 1599.4817910811. The cubic root of 2558342 is about 136.7685366466.

The spelling of 2558342 in words is "two million, five hundred fifty-eight thousand, three hundred forty-two".