20464433 has 8 divisors (see below), whose sum is σ = 23045376. Its totient is φ = 18003600.

The previous prime is 20464421. The next prime is 20464439. The reversal of 20464433 is 33446402.

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

It is a cyclic number.

It is not a de Polignac number, because 20464433 - 2⁴ = 20464417 is a prime.

It is a super-2 number, since 2×20464433² = 837586036022978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20464439) 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, 29666 + ... + 30347.

It is an arithmetic number, because the mean of its divisors is an integer number (2880672).

Almost surely, 2^20464433 is an apocalyptic number.

It is an amenable number.

20464433 is a deficient number, since it is larger than the sum of its proper divisors (2580943).

20464433 is a wasteful number, since it uses less digits than its factorization.

20464433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60055.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 20464433 is about 4523.7631458776. The cubic root of 20464433 is about 273.5268130753.

The spelling of 20464433 in words is "twenty million, four hundred sixty-four thousand, four hundred thirty-three".