20450433 has 8 divisors (see below), whose sum is σ = 27714496. Its totient is φ = 13410000.

The previous prime is 20450411. The next prime is 20450467. The reversal of 20450433 is 33405402.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20450433 - 2¹⁰ = 20449409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20450033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55693 + ... + 56058.

It is an arithmetic number, because the mean of its divisors is an integer number (3464312).

Almost surely, 2^20450433 is an apocalyptic number.

It is an amenable number.

20450433 is a deficient number, since it is larger than the sum of its proper divisors (7264063).

20450433 is a wasteful number, since it uses less digits than its factorization.

20450433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111815.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 20450433 is about 4522.2154968555. The cubic root of 20450433 is about 273.4644243616.

Adding to 20450433 its reverse (33405402), we get a palindrome (53855835).

The spelling of 20450433 in words is "twenty million, four hundred fifty thousand, four hundred thirty-three".