201605226 has 16 divisors (see below), whose sum is σ = 403817664. Its totient is φ = 67100544.

The previous prime is 201605213. The next prime is 201605249. The reversal of 201605226 is 622506102.

It is a super-2 number, since 2×201605226² = 81289334301022152, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201605196 and 201605205.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20926 + ... + 29001.

It is an arithmetic number, because the mean of its divisors is an integer number (25238604).

Almost surely, 2^201605226 is an apocalyptic number.

201605226 is an abundant number, since it is smaller than the sum of its proper divisors (202212438).

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

201605226 is a wasteful number, since it uses less digits than its factorization.

201605226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50605.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 201605226 is about 14198.7755105854. The cubic root of 201605226 is about 586.3639501602.

The spelling of 201605226 in words is "two hundred one million, six hundred five thousand, two hundred twenty-six".