20343933 has 16 divisors (see below), whose sum is σ = 30230400. Its totient is φ = 13521600.

The previous prime is 20343893. The next prime is 20343943. The reversal of 20343933 is 33934302.

It is not a de Polignac number, because 20343933 - 2⁸ = 20343677 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 20343897 and 20343906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20343943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9888 + ... + 11766.

It is an arithmetic number, because the mean of its divisors is an integer number (1889400).

Almost surely, 2^20343933 is an apocalyptic number.

It is an amenable number.

20343933 is a deficient number, since it is larger than the sum of its proper divisors (9886467).

20343933 is a wasteful number, since it uses less digits than its factorization.

20343933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289 (or 2283 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

The square root of 20343933 is about 4510.4249245498. The cubic root of 20343933 is about 272.9888897785.

The spelling of 20343933 in words is "twenty million, three hundred forty-three thousand, nine hundred thirty-three".