20393712 has 30 divisors (see below), whose sum is σ = 57074472. Its totient is φ = 6797856.

The previous prime is 20393689. The next prime is 20393717. The reversal of 20393712 is 21739302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20393717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70668 + ... + 70955.

Almost surely, 2^20393712 is an apocalyptic number.

It is an amenable number.

20393712 is an abundant number, since it is smaller than the sum of its proper divisors (36680760).

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

20393712 is a wasteful number, since it uses less digits than its factorization.

20393712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141637 (or 141628 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 20393712 is about 4515.9397693061. The cubic root of 20393712 is about 273.2113647113.

The spelling of 20393712 in words is "twenty million, three hundred ninety-three thousand, seven hundred twelve".