20293306 has 8 divisors (see below), whose sum is σ = 33207264. Its totient is φ = 9224220.

The previous prime is 20293289. The next prime is 20293307. The reversal of 20293306 is 60339202.

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

It is not an unprimeable number, because it can be changed into a prime (20293307) 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, 461190 + ... + 461233.

It is an arithmetic number, because the mean of its divisors is an integer number (4150908).

Almost surely, 2^20293306 is an apocalyptic number.

20293306 is a deficient number, since it is larger than the sum of its proper divisors (12913958).

20293306 is a wasteful number, since it uses less digits than its factorization.

20293306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 922436.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 20293306 is about 4504.8092079465. The cubic root of 20293306 is about 272.7622523686.

It can be divided in two parts, 2029 and 3306, that added together give a palindrome (5335).

The spelling of 20293306 in words is "twenty million, two hundred ninety-three thousand, three hundred six".