20020894 has 4 divisors (see below), whose sum is σ = 30031344. Its totient is φ = 10010446.

The previous prime is 20020841. The next prime is 20020901. The reversal of 20020894 is 49802002.

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 polite number, since it can be written as a sum of consecutive naturals, namely, 5005222 + ... + 5005225.

It is an arithmetic number, because the mean of its divisors is an integer number (7507836).

Almost surely, 2^20020894 is an apocalyptic number.

20020894 is a deficient number, since it is larger than the sum of its proper divisors (10010450).

20020894 is a wasteful number, since it uses less digits than its factorization.

20020894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10010449.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 20020894 is about 4474.4713654241. The cubic root of 20020894 is about 271.5362538313.

Adding to 20020894 its reverse (49802002), we get a palindrome (69822896).

The spelling of 20020894 in words is "twenty million, twenty thousand, eight hundred ninety-four".