1009323140 has 24 divisors (see below), whose sum is σ = 2422375872. Its totient is φ = 346053600.

The previous prime is 1009323131. The next prime is 1009323157. The reversal of 1009323140 is 413239001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3604586 + ... + 3604865.

It is an arithmetic number, because the mean of its divisors is an integer number (100932328).

Almost surely, 2^1009323140 is an apocalyptic number.

1009323140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1009323140 is an abundant number, since it is smaller than the sum of its proper divisors (1413052732).

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

1009323140 is a wasteful number, since it uses less digits than its factorization.

1009323140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7209467 (or 7209465 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1009323140 is about 31769.8463955997. The cubic root of 1009323140 is about 1003.0981051656.

It can be divided in two parts, 10093 and 23140, that added together give a palindrome (33233).

The spelling of 1009323140 in words is "one billion, nine million, three hundred twenty-three thousand, one hundred forty".