90209226 has 16 divisors (see below), whose sum is σ = 189914400. Its totient is φ = 28487088.

The previous prime is 90209221. The next prime is 90209267. The reversal of 90209226 is 62290209.

It is a junction number, because it is equal to n+sod(n) for n = 90209193 and 90209202.

It is not an unprimeable number, because it can be changed into a prime (90209221) 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, 395541 + ... + 395768.

It is an arithmetic number, because the mean of its divisors is an integer number (11869650).

Almost surely, 2^90209226 is an apocalyptic number.

90209226 is an abundant number, since it is smaller than the sum of its proper divisors (99705174).

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

90209226 is a wasteful number, since it uses less digits than its factorization.

90209226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791333.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 90209226 is about 9497.8537575602. The cubic root of 90209226 is about 448.4874749332.

The spelling of 90209226 in words is "ninety million, two hundred nine thousand, two hundred twenty-six".