226972890 has 24 divisors (see below), whose sum is σ = 590129748. Its totient is φ = 60526080.

The previous prime is 226972883. The next prime is 226972897. The reversal of 226972890 is 98279622.

It is an interprime number because it is at equal distance from previous prime (226972883) and next prime (226972897).

It can be written as a sum of positive squares in 2 ways, for example, as 222397569 + 4575321 = 14913^2 + 2139^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (226972897) 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, 1260871 + ... + 1261050.

Almost surely, 2^226972890 is an apocalyptic number.

226972890 is an abundant number, since it is smaller than the sum of its proper divisors (363156858).

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

226972890 is a wasteful number, since it uses less digits than its factorization.

226972890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521934 (or 2521931 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 226972890 is about 15065.6194695074. The cubic root of 226972890 is about 609.9927348414.

The spelling of 226972890 in words is "two hundred twenty-six million, nine hundred seventy-two thousand, eight hundred ninety".