2658238 has 8 divisors (see below), whose sum is σ = 4349880. Its totient is φ = 1208280.

The previous prime is 2658221. The next prime is 2658247. The reversal of 2658238 is 8328562.

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

It is a d-powerful number, because it can be written as 2¹¹ + 6⁵ + 5⁹ + 8 + 2¹⁷ + 3¹² + 8⁵ .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60393 + ... + 60436.

It is an arithmetic number, because the mean of its divisors is an integer number (543735).

2^2658238 is an apocalyptic number.

2658238 is a deficient number, since it is larger than the sum of its proper divisors (1691642).

2658238 is a wasteful number, since it uses less digits than its factorization.

2658238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120842.

The product of its digits is 23040, while the sum is 34.

The square root of 2658238 is about 1630.4103777884. The cubic root of 2658238 is about 138.5259978913.

The spelling of 2658238 in words is "two million, six hundred fifty-eight thousand, two hundred thirty-eight".