20342273 has 8 divisors (see below), whose sum is σ = 23815680. Its totient is φ = 17010720.

The previous prime is 20342269. The next prime is 20342303. The reversal of 20342273 is 37224302.

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 20342273 - 2² = 20342269 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20342213) 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, 35153 + ... + 35726.

It is an arithmetic number, because the mean of its divisors is an integer number (2976960).

Almost surely, 2^20342273 is an apocalyptic number.

It is an amenable number.

20342273 is a deficient number, since it is larger than the sum of its proper divisors (3473407).

20342273 is an equidigital number, since it uses as much as digits as its factorization.

20342273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70927.

The product of its (nonzero) digits is 2016, while the sum is 23.

The square root of 20342273 is about 4510.2409026570. The cubic root of 20342273 is about 272.9814645692.

Adding to 20342273 its reverse (37224302), we get a palindrome (57566575).

The spelling of 20342273 in words is "twenty million, three hundred forty-two thousand, two hundred seventy-three".