9209343980 has 96 divisors (see below), whose sum is σ = 20412241920. Its totient is φ = 3483406080.

The previous prime is 9209343977. The next prime is 9209343991. The reversal of 9209343980 is 893439029.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23197142 + ... + 23197538.

It is an arithmetic number, because the mean of its divisors is an integer number (212627520).

Almost surely, 2^9209343980 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9209343980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10206120960).

9209343980 is an abundant number, since it is smaller than the sum of its proper divisors (11202897940).

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

9209343980 is a wasteful number, since it uses less digits than its factorization.

9209343980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879 (or 877 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 47.

The square root of 9209343980 is about 95965.3269676085. The cubic root of 9209343980 is about 2096.0882569110.

The spelling of 9209343980 in words is "nine billion, two hundred nine million, three hundred forty-three thousand, nine hundred eighty".