9090478336 has 81 divisors (see below), whose sum is σ = 18642773653. Its totient is φ = 4423961600.

The previous prime is 9090478333. The next prime is 9090478361. The reversal of 9090478336 is 6338740909.

The square root of 9090478336 is 95344.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 8734023936 + 356454400 = 93456^2 + 18880^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9090478336.

It is not an unprimeable number, because it can be changed into a prime (9090478333) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 90004686 + ... + 90004786.

Almost surely, 2^9090478336 is an apocalyptic number.

9090478336 is the 95344-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9090478336

9090478336 is an abundant number, since it is smaller than the sum of its proper divisors (9552295317).

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

9090478336 is an frugal number, since it uses more digits than its factorization.

9090478336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 979776, while the sum is 49.

The cubic root of 9090478336 is about 2087.0310580899.

Multiplying 9090478336 by its sum of digits (49), we get a square (445433438464 = 667408²).

The spelling of 9090478336 in words is "nine billion, ninety million, four hundred seventy-eight thousand, three hundred thirty-six".