20085346 has 4 divisors (see below), whose sum is σ = 30128022. Its totient is φ = 10042672.

The previous prime is 20085323. The next prime is 20085353. The reversal of 20085346 is 64358002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18584721 + 1500625 = 4311^2 + 1225^2 .

It is a super-2 number, since 2×20085346² = 806842247879432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5021335 + ... + 5021338.

Almost surely, 2^20085346 is an apocalyptic number.

20085346 is a deficient number, since it is larger than the sum of its proper divisors (10042676).

20085346 is a wasteful number, since it uses less digits than its factorization.

20085346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10042675.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 20085346 is about 4481.6677699267. The cubic root of 20085346 is about 271.8273215551.

The spelling of 20085346 in words is "twenty million, eighty-five thousand, three hundred forty-six".