1009671720 has 64 divisors (see below), whose sum is σ = 3080376000. Its totient is φ = 264680448.

The previous prime is 1009671697. The next prime is 1009671721. The reversal of 1009671720 is 271769001.

1009671720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1009671721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64225 + ... + 78384.

It is an arithmetic number, because the mean of its divisors is an integer number (48130875).

Almost surely, 2^1009671720 is an apocalyptic number.

1009671720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1009671720 is an abundant number, since it is smaller than the sum of its proper divisors (2070704280).

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

1009671720 is a wasteful number, since it uses less digits than its factorization.

1009671720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142682 (or 142678 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 33.

The square root of 1009671720 is about 31775.3319416179. The cubic root of 1009671720 is about 1003.2135685814.

The spelling of 1009671720 in words is "one billion, nine million, six hundred seventy-one thousand, seven hundred twenty".