1009400168 has 32 divisors (see below), whose sum is σ = 2182857600. Its totient is φ = 428628672.

The previous prime is 1009400167. The next prime is 1009400209. The reversal of 1009400168 is 8610049001.

It is a self number, because there is not a number n which added to its sum of digits gives 1009400168.

It is not an unprimeable number, because it can be changed into a prime (1009400167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76580 + ... + 88787.

It is an arithmetic number, because the mean of its divisors is an integer number (68214300).

Almost surely, 2^1009400168 is an apocalyptic number.

It is an amenable number.

1009400168 is an abundant number, since it is smaller than the sum of its proper divisors (1173457432).

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

1009400168 is a wasteful number, since it uses less digits than its factorization.

1009400168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165489 (or 165485 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1009400168 is about 31771.0586540644. The cubic root of 1009400168 is about 1003.1236221589.

Adding to 1009400168 its reverse (8610049001), we get a palindrome (9619449169).

The spelling of 1009400168 in words is "one billion, nine million, four hundred thousand, one hundred sixty-eight".