1078111200 has 144 divisors (see below), whose sum is σ = 3662015616. Its totient is φ = 274982400.

The previous prime is 1078111187. The next prime is 1078111207. The reversal of 1078111200 is 21118701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1078111207) 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 23 ways as a sum of consecutive naturals, for example, 45435 + ... + 64965.

It is an arithmetic number, because the mean of its divisors is an integer number (25430664).

Almost surely, 2^1078111200 is an apocalyptic number.

1078111200 is a gapful number since it is divisible by the number (10) 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 1078111200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1831007808).

1078111200 is an abundant number, since it is smaller than the sum of its proper divisors (2583904416).

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

1078111200 is a wasteful number, since it uses less digits than its factorization.

1078111200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19577 (or 19564 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 21.

The square root of 1078111200 is about 32834.6036979282. The cubic root of 1078111200 is about 1025.3871074033.

Adding to 1078111200 its reverse (21118701), we get a palindrome (1099229901).

The spelling of 1078111200 in words is "one billion, seventy-eight million, one hundred eleven thousand, two hundred".