226389252 has 12 divisors (see below), whose sum is σ = 528241616. Its totient is φ = 75463080.

The previous prime is 226389197. The next prime is 226389257. The reversal of 226389252 is 252983622.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×226389252² = 102504186842239008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 226389252.

It is not an unprimeable number, because it can be changed into a prime (226389257) 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, 9432874 + ... + 9432897.

Almost surely, 2^226389252 is an apocalyptic number.

It is an amenable number.

226389252 is an abundant number, since it is smaller than the sum of its proper divisors (301852364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

226389252 is a wasteful number, since it uses less digits than its factorization.

226389252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18865778 (or 18865776 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 226389252 is about 15046.2371375703. The cubic root of 226389252 is about 609.4694410261.

The spelling of 226389252 in words is "two hundred twenty-six million, three hundred eighty-nine thousand, two hundred fifty-two".