20465433 has 16 divisors (see below), whose sum is σ = 32103360. Its totient is φ = 12840768.

The previous prime is 20465429. The next prime is 20465447. The reversal of 20465433 is 33456402.

20465433 is a `hidden beast` number, since 2 + 0 + 4 + 654 + 3 + 3 = 666.

It is not a de Polignac number, because 20465433 - 2² = 20465429 is a prime.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20465397 and 20465406.

It is not an unprimeable number, because it can be changed into a prime (20465233) 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 15 ways as a sum of consecutive naturals, for example, 21835 + ... + 22752.

It is an arithmetic number, because the mean of its divisors is an integer number (2006460).

Almost surely, 2^20465433 is an apocalyptic number.

It is an amenable number.

20465433 is a deficient number, since it is larger than the sum of its proper divisors (11637927).

20465433 is a wasteful number, since it uses less digits than its factorization.

20465433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44613 (or 44607 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 20465433 is about 4523.8736719763. The cubic root of 20465433 is about 273.5312683231.

The spelling of 20465433 in words is "twenty million, four hundred sixty-five thousand, four hundred thirty-three".