20080578 has 32 divisors (see below), whose sum is σ = 46172160. Its totient is φ = 5703120.

The previous prime is 20080573. The next prime is 20080589. The reversal of 20080578 is 87508002.

It is a super-2 number, since 2×20080578² = 806459225628168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20080573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6183 + ... + 8853.

It is an arithmetic number, because the mean of its divisors is an integer number (1442880).

Almost surely, 2^20080578 is an apocalyptic number.

20080578 is an abundant number, since it is smaller than the sum of its proper divisors (26091582).

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

20080578 is a wasteful number, since it uses less digits than its factorization.

20080578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 20080578 is about 4481.1357935238. The cubic root of 20080578 is about 271.8058104288.

The spelling of 20080578 in words is "twenty million, eighty thousand, five hundred seventy-eight".