90443462272 has 32 divisors (see below), whose sum is σ = 180988375680. Its totient is φ = 45018928896.

The previous prime is 90443462231. The next prime is 90443462273. The reversal of 90443462272 is 27226434409.

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (90443462273) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1555738 + ... + 1612825.

It is an arithmetic number, because the mean of its divisors is an integer number (5655886740).

Almost surely, 2^90443462272 is an apocalyptic number.

It is an amenable number.

90443462272 is an abundant number, since it is smaller than the sum of its proper divisors (90544913408).

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

90443462272 is a wasteful number, since it uses less digits than its factorization.

90443462272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3168800 (or 3168788 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 43.

The spelling of 90443462272 in words is "ninety billion, four hundred forty-three million, four hundred sixty-two thousand, two hundred seventy-two".