2478558 has 8 divisors (see below), whose sum is σ = 4957128. Its totient is φ = 826184.

The previous prime is 2478557. The next prime is 2478587. The reversal of 2478558 is 8558742.

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

2478558 is an admirable number.

It is a super-2 number, since 2×2478558² = 12286499518728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2478557) by changing a digit.

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, 206541 + ... + 206552.

It is an arithmetic number, because the mean of its divisors is an integer number (619641).

2^2478558 is an apocalyptic number.

2478558 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2478558 is a wasteful number, since it uses less digits than its factorization.

2478558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413098.

The product of its digits is 89600, while the sum is 39.

The square root of 2478558 is about 1574.3436727729. The cubic root of 2478558 is about 135.3317492487.

The spelling of 2478558 in words is "two million, four hundred seventy-eight thousand, five hundred fifty-eight".