9390945906 has 24 divisors (see below), whose sum is σ = 20353476780. Its totient is φ = 3129326496.

The previous prime is 9390945887. The next prime is 9390945923. The reversal of 9390945906 is 6095490939.

It can be written as a sum of positive squares in 2 ways, for example, as 9387865881 + 3080025 = 96891^2 + 1755^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22665 + ... + 138908.

Almost surely, 2^9390945906 is an apocalyptic number.

9390945906 is an abundant number, since it is smaller than the sum of its proper divisors (10962530874).

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

9390945906 is a wasteful number, since it uses less digits than its factorization.

9390945906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164810 (or 164807 counting only the distinct ones).

The product of its (nonzero) digits is 2361960, while the sum is 54.

The square root of 9390945906 is about 96906.8929746486. The cubic root of 9390945906 is about 2109.7764792461.

The spelling of 9390945906 in words is "nine billion, three hundred ninety million, nine hundred forty-five thousand, nine hundred six".