1100440000 has 280 divisors, whose sum is σ = 3099395376. Its totient is φ = 384000000.

The previous prime is 1100439997. The next prime is 1100440009. The reversal of 1100440000 is 440011.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a zygodrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100440009) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18039970 + ... + 18040030.

Almost surely, 2^1100440000 is an apocalyptic number.

1100440000 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 1100440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1549697688).

1100440000 is an abundant number, since it is smaller than the sum of its proper divisors (1998955376).

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

1100440000 is an equidigital number, since it uses as much as digits as its factorization.

1100440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1100440000 is about 33172.8804899424. The cubic root of 1100440000 is about 1032.4177344575.

Adding to 1100440000 its reverse (440011), we get a palindrome (1100880011).

It can be divided in two parts, 1100 and 440000, that multiplied together give a square (484000000 = 22000²).

The spelling of 1100440000 in words is "one billion, one hundred million, four hundred forty thousand".