90363220 has 24 divisors (see below), whose sum is σ = 192981600. Its totient is φ = 35532192.

The previous prime is 90363209. The next prime is 90363241. The reversal of 90363220 is 2236309.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37110 + ... + 39469.

It is an arithmetic number, because the mean of its divisors is an integer number (8040900).

Almost surely, 2^90363220 is an apocalyptic number.

It is an amenable number.

90363220 is an abundant number, since it is smaller than the sum of its proper divisors (102618380).

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

90363220 is a wasteful number, since it uses less digits than its factorization.

90363220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76647 (or 76645 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 90363220 is about 9505.9570796422. The cubic root of 90363220 is about 448.7425305823.

Adding to 90363220 its reverse (2236309), we get a palindrome (92599529).

The spelling of 90363220 in words is "ninety million, three hundred sixty-three thousand, two hundred twenty".