20046306 has 16 divisors (see below), whose sum is σ = 45820224. Its totient is φ = 5727504.

The previous prime is 20046289. The next prime is 20046347. The reversal of 20046306 is 60364002.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 238605 + ... + 238688.

It is an arithmetic number, because the mean of its divisors is an integer number (2863764).

Almost surely, 2^20046306 is an apocalyptic number.

20046306 is an abundant number, since it is smaller than the sum of its proper divisors (25773918).

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

20046306 is a wasteful number, since it uses less digits than its factorization.

20046306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477305.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 20046306 is about 4477.3101299776. The cubic root of 20046306 is about 271.6510898936.

The spelling of 20046306 in words is "twenty million, forty-six thousand, three hundred six".