20348433 has 24 divisors (see below), whose sum is σ = 33803328. Its totient is φ = 11554272.

The previous prime is 20348429. The next prime is 20348453. The reversal of 20348433 is 33484302.

It is not a de Polignac number, because 20348433 - 2² = 20348429 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20348397 and 20348406.

It is not an unprimeable number, because it can be changed into a prime (20348453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9966 + ... + 11832.

It is an arithmetic number, because the mean of its divisors is an integer number (1408472).

Almost surely, 2^20348433 is an apocalyptic number.

It is an amenable number.

20348433 is a deficient number, since it is larger than the sum of its proper divisors (13454895).

20348433 is a wasteful number, since it uses less digits than its factorization.

20348433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053 (or 2050 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 20348433 is about 4510.9237413195. The cubic root of 20348433 is about 273.0090163266.

The spelling of 20348433 in words is "twenty million, three hundred forty-eight thousand, four hundred thirty-three".