1109450868 has 48 divisors (see below), whose sum is σ = 2644776960. Its totient is φ = 361867104.

The previous prime is 1109450863. The next prime is 1109450887. The reversal of 1109450868 is 8680549011.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109450863) 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, 154371 + ... + 161397.

It is an arithmetic number, because the mean of its divisors is an integer number (55099520).

Almost surely, 2^1109450868 is an apocalyptic number.

It is an amenable number.

1109450868 is an abundant number, since it is smaller than the sum of its proper divisors (1535326092).

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

1109450868 is a wasteful number, since it uses less digits than its factorization.

1109450868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7316 (or 7314 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 1109450868 is about 33308.4203768356. The cubic root of 1109450868 is about 1035.2280353576.

Adding to 1109450868 its reverse (8680549011), we get a palindrome (9789999879).

The spelling of 1109450868 in words is "one billion, one hundred nine million, four hundred fifty thousand, eight hundred sixty-eight".