1009691960 has 16 divisors (see below), whose sum is σ = 2271807000. Its totient is φ = 403876768.

The previous prime is 1009691959. The next prime is 1009691983. The reversal of 1009691960 is 691969001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12621110 + ... + 12621189.

Almost surely, 2^1009691960 is an apocalyptic number.

1009691960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1009691960 is an abundant number, since it is smaller than the sum of its proper divisors (1262115040).

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

1009691960 is a wasteful number, since it uses less digits than its factorization.

1009691960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25242310 (or 25242306 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 41.

The square root of 1009691960 is about 31775.6504260731. The cubic root of 1009691960 is about 1003.2202720497.

The spelling of 1009691960 in words is "one billion, nine million, six hundred ninety-one thousand, nine hundred sixty".