2258906 has 16 divisors (see below), whose sum is σ = 3673824. Its totient is φ = 1035504.

The previous prime is 2258903. The next prime is 2258917. The reversal of 2258906 is 6098522.

2258906 = T₅₈₃ + T₅₈₄ + ... + T₅₉₅.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2258903) 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 7 ways as a sum of consecutive naturals, for example, 7205 + ... + 7511.

It is an arithmetic number, because the mean of its divisors is an integer number (229614).

2^2258906 is an apocalyptic number.

2258906 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2258906 is a deficient number, since it is larger than the sum of its proper divisors (1414918).

2258906 is a wasteful number, since it uses less digits than its factorization.

2258906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 2258906 is about 1502.9657348057. The cubic root of 2258906 is about 131.2097333771.

The spelling of 2258906 in words is "two million, two hundred fifty-eight thousand, nine hundred six".