20059878 has 16 divisors (see below), whose sum is σ = 40278960. Its totient is φ = 6660096.

The previous prime is 20059861. The next prime is 20059901. The reversal of 20059878 is 87895002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4963 + ... + 8046.

It is an arithmetic number, because the mean of its divisors is an integer number (2517435).

Almost surely, 2^20059878 is an apocalyptic number.

20059878 is an abundant number, since it is smaller than the sum of its proper divisors (20219082).

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

20059878 is a wasteful number, since it uses less digits than its factorization.

20059878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13271.

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

The square root of 20059878 is about 4478.8255156905. The cubic root of 20059878 is about 271.7123815993.

The spelling of 20059878 in words is "twenty million, fifty-nine thousand, eight hundred seventy-eight".