2258478 has 12 divisors (see below), whose sum is σ = 4893408. Its totient is φ = 752820.

The previous prime is 2258453. The next prime is 2258479. The reversal of 2258478 is 8748522.

It is a happy number.

2258478 is a `hidden beast` number, since 2 + 2 + 584 + 78 = 666.

2258478 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2258479) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 62718 + ... + 62753.

It is an arithmetic number, because the mean of its divisors is an integer number (407784).

2^2258478 is an apocalyptic number.

2258478 is an abundant number, since it is smaller than the sum of its proper divisors (2634930).

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

2258478 is a wasteful number, since it uses less digits than its factorization.

2258478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125479 (or 125476 counting only the distinct ones).

The product of its digits is 35840, while the sum is 36.

The square root of 2258478 is about 1502.8233429116. The cubic root of 2258478 is about 131.2014459859.

The spelling of 2258478 in words is "two million, two hundred fifty-eight thousand, four hundred seventy-eight".