20938294 has 16 divisors (see below), whose sum is σ = 33904080. Its totient is φ = 9640800.

The previous prime is 20938289. The next prime is 20938297. The reversal of 20938294 is 49283902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20938297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15444 + ... + 16744.

It is an arithmetic number, because the mean of its divisors is an integer number (2119005).

Almost surely, 2^20938294 is an apocalyptic number.

20938294 is a deficient number, since it is larger than the sum of its proper divisors (12965786).

20938294 is a wasteful number, since it uses less digits than its factorization.

20938294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 20938294 is about 4575.8380653166. The cubic root of 20938294 is about 275.6219268549.

It can be divided in two parts, 209 and 38294, that added together give a triangular number (38503 = T₂₇₇).

The spelling of 20938294 in words is "twenty million, nine hundred thirty-eight thousand, two hundred ninety-four".