20046345 has 16 divisors (see below), whose sum is σ = 34990272. Its totient is φ = 9719360.

The previous prime is 20046289. The next prime is 20046347. The reversal of 20046345 is 54364002.

It is not a de Polignac number, because 20046345 - 2⁹ = 20045833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20046347) 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, 60582 + ... + 60911.

It is an arithmetic number, because the mean of its divisors is an integer number (2186892).

Almost surely, 2^20046345 is an apocalyptic number.

It is an amenable number.

20046345 is a deficient number, since it is larger than the sum of its proper divisors (14943927).

20046345 is a wasteful number, since it uses less digits than its factorization.

20046345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121512.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 20046345 is about 4477.3144852690. The cubic root of 20046345 is about 271.6512660588.

The spelling of 20046345 in words is "twenty million, forty-six thousand, three hundred forty-five".