1144550000 has 120 divisors (see below), whose sum is σ = 3025212624. Its totient is φ = 416000000.

The previous prime is 1144549981. The next prime is 1144550009. The reversal of 1144550000 is 554411.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 (1144550009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 548960 + ... + 551040.

Almost surely, 2^1144550000 is an apocalyptic number.

1144550000 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 1144550000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1512606312).

1144550000 is an abundant number, since it is smaller than the sum of its proper divisors (1880662624).

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

1144550000 is an equidigital number, since it uses as much as digits as its factorization.

1144550000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125 (or 2099 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 1144550000 is about 33831.1986190262. The cubic root of 1144550000 is about 1046.0318859577.

The spelling of 1144550000 in words is "one billion, one hundred forty-four million, five hundred fifty thousand".