90938382020 has 24 divisors (see below), whose sum is σ = 192861404568. Its totient is φ = 36015200000.

The previous prime is 90938382011. The next prime is 90938382023. The reversal of 90938382020 is 2028383909.

It can be written as a sum of positive squares in 4 ways, for example, as 60751404484 + 30186977536 = 246478^2 + 173744^2 .

It is not an unprimeable number, because it can be changed into a prime (90938382023) 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 7 ways as a sum of consecutive naturals, for example, 22507481 + ... + 22511520.

It is an arithmetic number, because the mean of its divisors is an integer number (8035891857).

Almost surely, 2^90938382020 is an apocalyptic number.

It is an amenable number.

90938382020 is an abundant number, since it is smaller than the sum of its proper divisors (101923022548).

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

90938382020 is a wasteful number, since it uses less digits than its factorization.

90938382020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45019111 (or 45019109 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 90938382020 in words is "ninety billion, nine hundred thirty-eight million, three hundred eighty-two thousand, twenty".