20293912 has 32 divisors (see below), whose sum is σ = 40474080. Its totient is φ = 9518080.

The previous prime is 20293909. The next prime is 20293913. The reversal of 20293912 is 21939202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20293913) 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 in 7 ways as a sum of consecutive naturals, for example, 8712 + ... + 10792.

It is an arithmetic number, because the mean of its divisors is an integer number (1264815).

Almost surely, 2^20293912 is an apocalyptic number.

It is an amenable number.

20293912 is a deficient number, since it is larger than the sum of its proper divisors (20180168).

20293912 is a wasteful number, since it uses less digits than its factorization.

20293912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2163 (or 2159 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 20293912 is about 4504.8764688946. The cubic root of 20293912 is about 272.7649674228.

The spelling of 20293912 in words is "twenty million, two hundred ninety-three thousand, nine hundred twelve".