9090922544 has 30 divisors (see below), whose sum is σ = 19217578404. Its totient is φ = 4131662560.

The previous prime is 9090922541. The next prime is 9090922591. The reversal of 9090922544 is 4452290909.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 9090922495 and 9090922504.

It is not an unprimeable number, because it can be changed into a prime (9090922541) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1261319 + ... + 1268505.

Almost surely, 2^9090922544 is an apocalyptic number.

It is an amenable number.

9090922544 is an abundant number, since it is smaller than the sum of its proper divisors (10126655860).

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

9090922544 is an frugal number, since it uses more digits than its factorization.

9090922544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14393 (or 7200 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The square root of 9090922544 is about 95346.3294731370. The cubic root of 9090922544 is about 2087.0650519297.

Multiplying 9090922544 by its sum of digits (44), we get a square (400000591936 = 632456²).

9090922544 divided by its sum of digits (44) gives a square (206611876 = 14374²).

The spelling of 9090922544 in words is "nine billion, ninety million, nine hundred twenty-two thousand, five hundred forty-four".