90308200320 has 512 divisors, whose sum is σ = 348392016000. Its totient is φ = 21975072768.

The previous prime is 90308200313. The next prime is 90308200379. The reversal of 90308200320 is 2300280309.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19990702 + ... + 19995218.

Almost surely, 2^90308200320 is an apocalyptic number.

90308200320 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90308200320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174196008000).

90308200320 is an abundant number, since it is smaller than the sum of its proper divisors (258083815680).

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

90308200320 is a wasteful number, since it uses less digits than its factorization.

90308200320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4647 (or 4629 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 90308200320 its reverse (2300280309), we get a palindrome (92608480629).

The spelling of 90308200320 in words is "ninety billion, three hundred eight million, two hundred thousand, three hundred twenty".