20022329 has 4 divisors (see below), whose sum is σ = 20448384. Its totient is φ = 19596276.

The previous prime is 20022323. The next prime is 20022407. The reversal of 20022329 is 92322002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20022329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20022329.

It is not an unprimeable number, because it can be changed into a prime (20022323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212957 + ... + 213050.

It is an arithmetic number, because the mean of its divisors is an integer number (5112096).

Almost surely, 2^20022329 is an apocalyptic number.

It is an amenable number.

20022329 is a deficient number, since it is larger than the sum of its proper divisors (426055).

20022329 is an equidigital number, since it uses as much as digits as its factorization.

20022329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426054.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 20022329 is about 4474.6317166891. The cubic root of 20022329 is about 271.5427411409.

The spelling of 20022329 in words is "twenty million, twenty-two thousand, three hundred twenty-nine".