2558390 has 8 divisors (see below), whose sum is σ = 4605120. Its totient is φ = 1023352.

The previous prime is 2558377. The next prime is 2558411. The reversal of 2558390 is 938552.

It is a happy number.

2558390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127910 + ... + 127929.

It is an arithmetic number, because the mean of its divisors is an integer number (575640).

2^2558390 is an apocalyptic number.

2558390 is a deficient number, since it is larger than the sum of its proper divisors (2046730).

2558390 is a wasteful number, since it uses less digits than its factorization.

2558390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255846.

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 2558390 is about 1599.4967958705. The cubic root of 2558390 is about 136.7693919986.

The spelling of 2558390 in words is "two million, five hundred fifty-eight thousand, three hundred ninety".