20085270 has 32 divisors (see below), whose sum is σ = 48398688. Its totient is φ = 5334528.

The previous prime is 20085239. The next prime is 20085277. The reversal of 20085270 is 7258002.

It is a self number, because there is not a number n which added to its sum of digits gives 20085270.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20085277) 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, 7102 + ... + 9518.

It is an arithmetic number, because the mean of its divisors is an integer number (1512459).

Almost surely, 2^20085270 is an apocalyptic number.

20085270 is an abundant number, since it is smaller than the sum of its proper divisors (28313418).

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

20085270 is a wasteful number, since it uses less digits than its factorization.

20085270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2704.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 20085270 is about 4481.6592909323. The cubic root of 20085270 is about 271.8269787031.

The spelling of 20085270 in words is "twenty million, eighty-five thousand, two hundred seventy".