20995433 has 8 divisors (see below), whose sum is σ = 21306240. Its totient is φ = 20686960.

The previous prime is 20995427. The next prime is 20995439. The reversal of 20995433 is 33459902.

It is an interprime number because it is at equal distance from previous prime (20995427) and next prime (20995439).

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 20995433 - 2⁶ = 20995369 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20995393 and 20995402.

It is not an unprimeable number, because it can be changed into a prime (20995439) 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 7 ways as a sum of consecutive naturals, for example, 25163 + ... + 25983.

It is an arithmetic number, because the mean of its divisors is an integer number (2663280).

Almost surely, 2^20995433 is an apocalyptic number.

It is an amenable number.

20995433 is a deficient number, since it is larger than the sum of its proper divisors (310807).

20995433 is a wasteful number, since it uses less digits than its factorization.

20995433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 20995433 is about 4582.0773673084. The cubic root of 20995433 is about 275.8724161774.

The spelling of 20995433 in words is "twenty million, nine hundred ninety-five thousand, four hundred thirty-three".