20828362 has 4 divisors (see below), whose sum is σ = 31242546. Its totient is φ = 10414180.

The previous prime is 20828333. The next prime is 20828371. The reversal of 20828362 is 26382802.

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., 14371681 + 6456681 = 3791^2 + 2541^2 .

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, 5207089 + ... + 5207092.

Almost surely, 2^20828362 is an apocalyptic number.

20828362 is a deficient number, since it is larger than the sum of its proper divisors (10414184).

20828362 is a wasteful number, since it uses less digits than its factorization.

20828362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10414183.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 20828362 is about 4563.8100311034. The cubic root of 20828362 is about 275.1387156921.

The spelling of 20828362 in words is "twenty million, eight hundred twenty-eight thousand, three hundred sixty-two".