90432355444 has 24 divisors (see below), whose sum is σ = 159651122400. Its totient is φ = 44818556640.

The previous prime is 90432355441. The next prime is 90432355459. The reversal of 90432355444 is 44455323409.

It is a super-2 number, since 2×90432355444² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 90432355444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90432355441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349662 + ... + 550570.

It is an arithmetic number, because the mean of its divisors is an integer number (6652130100).

Almost surely, 2^90432355444 is an apocalyptic number.

It is an amenable number.

90432355444 is a deficient number, since it is larger than the sum of its proper divisors (69218766956).

90432355444 is a wasteful number, since it uses less digits than its factorization.

90432355444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201903 (or 201901 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 43.

The spelling of 90432355444 in words is "ninety billion, four hundred thirty-two million, three hundred fifty-five thousand, four hundred forty-four".