20410878 has 16 divisors (see below), whose sum is σ = 41690880. Its totient is φ = 6658776.

The previous prime is 20410877. The next prime is 20410879. The reversal of 20410878 is 87801402.

It is an interprime number because it is at equal distance from previous prime (20410877) and next prime (20410879).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20410877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35908 + ... + 36471.

It is an arithmetic number, because the mean of its divisors is an integer number (2605680).

Almost surely, 2^20410878 is an apocalyptic number.

20410878 is an abundant number, since it is smaller than the sum of its proper divisors (21280002).

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

20410878 is a wasteful number, since it uses less digits than its factorization.

20410878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72431.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 20410878 is about 4517.8399706054. The cubic root of 20410878 is about 273.2879999508.

The spelling of 20410878 in words is "twenty million, four hundred ten thousand, eight hundred seventy-eight".