90443292 has 12 divisors (see below), whose sum is σ = 211034376. Its totient is φ = 30147760.

The previous prime is 90443267. The next prime is 90443293. The reversal of 90443292 is 29234409.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90443293) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3768459 + ... + 3768482.

It is an arithmetic number, because the mean of its divisors is an integer number (17586198).

Almost surely, 2^90443292 is an apocalyptic number.

It is an amenable number.

90443292 is an abundant number, since it is smaller than the sum of its proper divisors (120591084).

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

90443292 is a wasteful number, since it uses less digits than its factorization.

90443292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7536948 (or 7536946 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 90443292 is about 9510.1678218631. The cubic root of 90443292 is about 448.8750369418.

The spelling of 90443292 in words is "ninety million, four hundred forty-three thousand, two hundred ninety-two".