90226170 has 32 divisors (see below), whose sum is σ = 240603840. Its totient is φ = 24060240.

The previous prime is 90226159. The next prime is 90226177. The reversal of 90226170 is 7162209.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90226177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166816 + ... + 167355.

It is an arithmetic number, because the mean of its divisors is an integer number (7518870).

Almost surely, 2^90226170 is an apocalyptic number.

90226170 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

90226170 is an abundant number, since it is smaller than the sum of its proper divisors (150377670).

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

90226170 is a wasteful number, since it uses less digits than its factorization.

90226170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334187 (or 334181 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 90226170 is about 9498.7457066710. The cubic root of 90226170 is about 448.5155529779.

Adding to 90226170 its reverse (7162209), we get a palindrome (97388379).

It can be divided in two parts, 902 and 26170, that added together give a palindrome (27072).

The spelling of 90226170 in words is "ninety million, two hundred twenty-six thousand, one hundred seventy".