90006270 has 64 divisors (see below), whose sum is σ = 221633280. Its totient is φ = 23385600.

The previous prime is 90006263. The next prime is 90006289. The reversal of 90006270 is 7260009.

It is a super-2 number, since 2×90006270² = 16202257278625800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90006270.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 373350 + ... + 373590.

It is an arithmetic number, because the mean of its divisors is an integer number (3463020).

Almost surely, 2^90006270 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90006270, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110816640).

90006270 is an abundant number, since it is smaller than the sum of its proper divisors (131627010).

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

90006270 is a wasteful number, since it uses less digits than its factorization.

90006270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 90006270 is about 9487.1634327653. The cubic root of 90006270 is about 448.1508812317.

Adding to 90006270 its reverse (7260009), we get a palindrome (97266279).

The spelling of 90006270 in words is "ninety million, six thousand, two hundred seventy".