20349226 has 4 divisors (see below), whose sum is σ = 30523842. Its totient is φ = 10174612.

The previous prime is 20349179. The next prime is 20349229. The reversal of 20349226 is 62294302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 18054001 + 2295225 = 4249^2 + 1515^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20349194 and 20349203.

It is not an unprimeable number, because it can be changed into a prime (20349229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5087305 + ... + 5087308.

Almost surely, 2^20349226 is an apocalyptic number.

20349226 is a deficient number, since it is larger than the sum of its proper divisors (10174616).

20349226 is a wasteful number, since it uses less digits than its factorization.

20349226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10174615.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 20349226 is about 4511.0116382027. The cubic root of 20349226 is about 273.0125627641.

The spelling of 20349226 in words is "twenty million, three hundred forty-nine thousand, two hundred twenty-six".