226355021 has 8 divisors (see below), whose sum is σ = 228480000. Its totient is φ = 224235648.

The previous prime is 226355009. The next prime is 226355023. The reversal of 226355021 is 120553622.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-226355021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226355023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157910 + ... + 159336.

It is an arithmetic number, because the mean of its divisors is an integer number (28560000).

Almost surely, 2^226355021 is an apocalyptic number.

It is an amenable number.

226355021 is a deficient number, since it is larger than the sum of its proper divisors (2124979).

226355021 is a wasteful number, since it uses less digits than its factorization.

226355021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 226355021 is about 15045.0995676333. The cubic root of 226355021 is about 609.4387213698.

The spelling of 226355021 in words is "two hundred twenty-six million, three hundred fifty-five thousand, twenty-one".