90227390 has 64 divisors (see below), whose sum is σ = 194711040. Its totient is φ = 29715840.

The previous prime is 90227387. The next prime is 90227407. The reversal of 90227390 is 9372209.

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 31 ways as a sum of consecutive naturals, for example, 47132 + ... + 49008.

It is an arithmetic number, because the mean of its divisors is an integer number (3042360).

Almost surely, 2^90227390 is an apocalyptic number.

90227390 is an abundant number, since it is smaller than the sum of its proper divisors (104483650).

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

90227390 is a wasteful number, since it uses less digits than its factorization.

90227390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 90227390 is about 9498.8099254591. The cubic root of 90227390 is about 448.5175745145.

Adding to 90227390 its reverse (9372209), we get a palindrome (99599599).

The spelling of 90227390 in words is "ninety million, two hundred twenty-seven thousand, three hundred ninety".