20852834 has 4 divisors (see below), whose sum is σ = 31279254. Its totient is φ = 10426416.

The previous prime is 20852831. The next prime is 20852849. The reversal of 20852834 is 43825802.

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., 12996025 + 7856809 = 3605^2 + 2803^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20852834.

It is not an unprimeable number, because it can be changed into a prime (20852831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5213207 + ... + 5213210.

Almost surely, 2^20852834 is an apocalyptic number.

20852834 is a deficient number, since it is larger than the sum of its proper divisors (10426420).

20852834 is a wasteful number, since it uses less digits than its factorization.

20852834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10426419.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 20852834 is about 4566.4903372284. The cubic root of 20852834 is about 275.2464303449.

The spelling of 20852834 in words is "twenty million, eight hundred fifty-two thousand, eight hundred thirty-four".