20254229 has 4 divisors (see below), whose sum is σ = 20450976. Its totient is φ = 20057484.

The previous prime is 20254219. The next prime is 20254243. The reversal of 20254229 is 92245202.

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 not a de Polignac number, because 20254229 - 2⁸ = 20253973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20254198 and 20254207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20254219) 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 3 ways as a sum of consecutive naturals, for example, 98219 + ... + 98424.

It is an arithmetic number, because the mean of its divisors is an integer number (5112744).

Almost surely, 2^20254229 is an apocalyptic number.

It is an amenable number.

20254229 is a deficient number, since it is larger than the sum of its proper divisors (196747).

20254229 is a wasteful number, since it uses less digits than its factorization.

20254229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196746.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 20254229 is about 4500.4698643586. The cubic root of 20254229 is about 272.5870619325.

The spelling of 20254229 in words is "twenty million, two hundred fifty-four thousand, two hundred twenty-nine".