20085466 has 16 divisors (see below), whose sum is σ = 32221800. Its totient is φ = 9356800.

The previous prime is 20085397. The next prime is 20085467. The reversal of 20085466 is 66458002.

It can be written as a sum of positive squares in 4 ways, for example, as 20061441 + 24025 = 4479^2 + 155^2 .

It is not an unprimeable number, because it can be changed into a prime (20085467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 510 + ... + 6358.

Almost surely, 2^20085466 is an apocalyptic number.

20085466 is a deficient number, since it is larger than the sum of its proper divisors (12136334).

20085466 is a wasteful number, since it uses less digits than its factorization.

20085466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5969.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 20085466 is about 4481.6811577800. The cubic root of 20085466 is about 271.8278628985.

The spelling of 20085466 in words is "twenty million, eighty-five thousand, four hundred sixty-six".