20246066 has 4 divisors (see below), whose sum is σ = 30369102. Its totient is φ = 10123032.

The previous prime is 20246063. The next prime is 20246071. The reversal of 20246066 is 66064202.

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., 18671041 + 1575025 = 4321^2 + 1255^2 .

It is not an unprimeable number, because it can be changed into a prime (20246063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5061515 + ... + 5061518.

Almost surely, 2^20246066 is an apocalyptic number.

20246066 is a deficient number, since it is larger than the sum of its proper divisors (10123036).

20246066 is a wasteful number, since it uses less digits than its factorization.

20246066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10123035.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 20246066 is about 4499.5628676573. The cubic root of 20246066 is about 272.5504370350.

The spelling of 20246066 in words is "twenty million, two hundred forty-six thousand, sixty-six".