20589078 has 16 divisors (see below), whose sum is σ = 41299056. Its totient is φ = 6842880.

The previous prime is 20589073. The next prime is 20589109. The reversal of 20589078 is 87098502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20589073) 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 7 ways as a sum of consecutive naturals, for example, 2743 + ... + 6978.

It is an arithmetic number, because the mean of its divisors is an integer number (2581191).

Almost surely, 2^20589078 is an apocalyptic number.

20589078 is an abundant number, since it is smaller than the sum of its proper divisors (20709978).

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

20589078 is a wasteful number, since it uses less digits than its factorization.

20589078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10079.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 20589078 is about 4537.5189255804. The cubic root of 20589078 is about 274.0810228004.

The spelling of 20589078 in words is "twenty million, five hundred eighty-nine thousand, seventy-eight".