9420229 has 12 divisors (see below), whose sum is σ = 11659296. Its totient is φ = 7452432.

The previous prime is 9420223. The next prime is 9420239. The reversal of 9420229 is 9220249.

9420229 = 147² + 148² + ... + 315².

It is a happy number.

It is not a de Polignac number, because 9420229 - 2⁷ = 9420101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9420197 and 9420206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9420223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2799 + ... + 5164.

It is an arithmetic number, because the mean of its divisors is an integer number (971608).

Almost surely, 2^9420229 is an apocalyptic number.

It is an amenable number.

9420229 is a deficient number, since it is larger than the sum of its proper divisors (2239067).

9420229 is a wasteful number, since it uses less digits than its factorization.

9420229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7996 (or 7983 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 9420229 is about 3069.2391565337. The cubic root of 9420229 is about 211.1967123976.

The spelling of 9420229 in words is "nine million, four hundred twenty thousand, two hundred twenty-nine".