1009319772 has 24 divisors (see below), whose sum is σ = 2355696000. Its totient is φ = 336351856.

The previous prime is 1009319749. The next prime is 1009319789. The reversal of 1009319772 is 2779139001.

It is a self number, because there is not a number n which added to its sum of digits gives 1009319772.

It is a congruent number.

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, 50479 + ... + 67577.

It is an arithmetic number, because the mean of its divisors is an integer number (98154000).

Almost surely, 2^1009319772 is an apocalyptic number.

1009319772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1009319772 is an abundant number, since it is smaller than the sum of its proper divisors (1346376228).

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

1009319772 is a wasteful number, since it uses less digits than its factorization.

1009319772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22025 (or 22023 counting only the distinct ones).

The product of its (nonzero) digits is 23814, while the sum is 39.

The square root of 1009319772 is about 31769.7933893187. The cubic root of 1009319772 is about 1003.0969894218.

The spelling of 1009319772 in words is "one billion, nine million, three hundred nineteen thousand, seven hundred seventy-two".