20302246 has 4 divisors (see below), whose sum is σ = 30453372. Its totient is φ = 10151122.

The previous prime is 20302223. The next prime is 20302259. The reversal of 20302246 is 64220302.

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

It is a congruent number.

It is an unprimeable number.

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, 5075560 + ... + 5075563.

It is an arithmetic number, because the mean of its divisors is an integer number (7613343).

Almost surely, 2^20302246 is an apocalyptic number.

20302246 is a deficient number, since it is larger than the sum of its proper divisors (10151126).

20302246 is a wasteful number, since it uses less digits than its factorization.

20302246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10151125.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 20302246 is about 4505.8013715653. The cubic root of 20302246 is about 272.8023006574.

Adding to 20302246 its reverse (64220302), we get a palindrome (84522548).

The spelling of 20302246 in words is "twenty million, three hundred two thousand, two hundred forty-six".