1109577312 has 192 divisors, whose sum is σ = 3384158400. Its totient is φ = 353341440.

The previous prime is 1109577307. The next prime is 1109577319. The reversal of 1109577312 is 2137759011.

It is a super-2 number, since 2×1109577312² = 2462323622610290688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109577319) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1949764 + ... + 1950332.

It is an arithmetic number, because the mean of its divisors is an integer number (17625825).

Almost surely, 2^1109577312 is an apocalyptic number.

1109577312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1109577312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1692079200).

1109577312 is an abundant number, since it is smaller than the sum of its proper divisors (2274581088).

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

1109577312 is a wasteful number, since it uses less digits than its factorization.

1109577312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 36.

The square root of 1109577312 is about 33310.3184013603. The cubic root of 1109577312 is about 1035.2673621408.

The spelling of 1109577312 in words is "one billion, one hundred nine million, five hundred seventy-seven thousand, three hundred twelve".