9071644940 has 24 divisors (see below), whose sum is σ = 19053295632. Its totient is φ = 3628116800.

The previous prime is 9071644919. The next prime is 9071644993. The reversal of 9071644940 is 494461709.

It is a junction number, because it is equal to n+sod(n) for n = 9071644891 and 9071644900.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120890 + ... + 180990.

It is an arithmetic number, because the mean of its divisors is an integer number (793887318).

Almost surely, 2^9071644940 is an apocalyptic number.

It is an amenable number.

9071644940 is an abundant number, since it is smaller than the sum of its proper divisors (9981650692).

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

9071644940 is a wasteful number, since it uses less digits than its factorization.

9071644940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67657 (or 67655 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 9071644940 is about 95245.1832902851. The cubic root of 9071644940 is about 2085.5887776258.

The spelling of 9071644940 in words is "nine billion, seventy-one million, six hundred forty-four thousand, nine hundred forty".