226620591 has 8 divisors (see below), whose sum is σ = 319935024. Its totient is φ = 142193280.

The previous prime is 226620547. The next prime is 226620601. The reversal of 226620591 is 195026622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 226620591 - 2¹⁰ = 226619567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226620091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2221720 + ... + 2221821.

It is an arithmetic number, because the mean of its divisors is an integer number (39991878).

Almost surely, 2^226620591 is an apocalyptic number.

226620591 is a deficient number, since it is larger than the sum of its proper divisors (93314433).

226620591 is a wasteful number, since it uses less digits than its factorization.

226620591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4443561.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 226620591 is about 15053.9227778011. The cubic root of 226620591 is about 609.6769686236.

The spelling of 226620591 in words is "two hundred twenty-six million, six hundred twenty thousand, five hundred ninety-one".