20343712 has 24 divisors (see below), whose sum is σ = 40162500. Its totient is φ = 10143744.

The previous prime is 20343689. The next prime is 20343727. The reversal of 20343712 is 21734302.

It can be written as a sum of positive squares in 2 ways, for example, as 20034576 + 309136 = 4476^2 + 556^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15664 + ... + 16912.

Almost surely, 2^20343712 is an apocalyptic number.

It is an amenable number.

20343712 is a deficient number, since it is larger than the sum of its proper divisors (19818788).

20343712 is a wasteful number, since it uses less digits than its factorization.

20343712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1768 (or 1760 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 20343712 is about 4510.4004256828. The cubic root of 20343712 is about 272.9879012649.

The spelling of 20343712 in words is "twenty million, three hundred forty-three thousand, seven hundred twelve".