20939094 has 32 divisors (see below), whose sum is σ = 50762880. Its totient is φ = 6345000.

The previous prime is 20939071. The next prime is 20939123. The reversal of 20939094 is 49093902.

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 in 15 ways as a sum of consecutive naturals, for example, 17032 + ... + 18219.

It is an arithmetic number, because the mean of its divisors is an integer number (1586340).

Almost surely, 2^20939094 is an apocalyptic number.

20939094 is an abundant number, since it is smaller than the sum of its proper divisors (29823786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20939094 is a wasteful number, since it uses less digits than its factorization.

20939094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35273 (or 35267 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 20939094 is about 4575.9254801625. The cubic root of 20939094 is about 275.6254370857.

The spelling of 20939094 in words is "twenty million, nine hundred thirty-nine thousand, ninety-four".