226398557 has 16 divisors (see below), whose sum is σ = 282673152. Its totient is φ = 176158320.

The previous prime is 226398541. The next prime is 226398581. The reversal of 226398557 is 755893622.

It is a cyclic number.

It is not a de Polignac number, because 226398557 - 2⁴ = 226398541 is a prime.

It is a super-2 number, since 2×226398557² = 102512613223364498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226398587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64748 + ... + 68154.

It is an arithmetic number, because the mean of its divisors is an integer number (17667072).

Almost surely, 2^226398557 is an apocalyptic number.

It is an amenable number.

226398557 is a deficient number, since it is larger than the sum of its proper divisors (56274595).

226398557 is a wasteful number, since it uses less digits than its factorization.

226398557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4288.

The product of its digits is 907200, while the sum is 47.

The square root of 226398557 is about 15046.5463479165. The cubic root of 226398557 is about 609.4777910036.

The spelling of 226398557 in words is "two hundred twenty-six million, three hundred ninety-eight thousand, five hundred fifty-seven".