90244812 has 24 divisors (see below), whose sum is σ = 240653056. Its totient is φ = 25784208.

The previous prime is 90244783. The next prime is 90244829. The reversal of 90244812 is 21844209.

It is a self number, because there is not a number n which added to its sum of digits gives 90244812.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 537088 + ... + 537255.

Almost surely, 2^90244812 is an apocalyptic number.

It is an amenable number.

90244812 is an abundant number, since it is smaller than the sum of its proper divisors (150408244).

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

90244812 is a wasteful number, since it uses less digits than its factorization.

90244812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074357 (or 1074355 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 90244812 is about 9499.7269434442. The cubic root of 90244812 is about 448.5464407317.

The spelling of 90244812 in words is "ninety million, two hundred forty-four thousand, eight hundred twelve".