18059226 has 16 divisors (see below), whose sum is σ = 36958944. Its totient is φ = 5879664.

The previous prime is 18059221. The next prime is 18059243. The reversal of 18059226 is 62295081.

It is a super-2 number, since 2×18059226² = 652271287438152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (18059221) 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, 34741 + ... + 35256.

It is an arithmetic number, because the mean of its divisors is an integer number (2309934).

Almost surely, 2^18059226 is an apocalyptic number.

18059226 is an abundant number, since it is smaller than the sum of its proper divisors (18899718).

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

18059226 is a wasteful number, since it uses less digits than its factorization.

18059226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70045.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 18059226 is about 4249.6148060736. The cubic root of 18059226 is about 262.3612618335.

The spelling of 18059226 in words is "eighteen million, fifty-nine thousand, two hundred twenty-six".