1443400000 has 168 divisors, whose sum is σ = 4095487872. Its totient is φ = 494400000.

The previous prime is 1443399949. The next prime is 1443400009. The reversal of 1443400000 is 43441.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1443400009) 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, 1399485 + ... + 1400515.

It is an arithmetic number, because the mean of its divisors is an integer number (24377904).

Almost surely, 2^1443400000 is an apocalyptic number.

1443400000 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 1443400000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2047743936).

1443400000 is an abundant number, since it is smaller than the sum of its proper divisors (2652087872).

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

1443400000 is an frugal number, since it uses more digits than its factorization.

1443400000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1443400000 is about 37992.1044428971. The cubic root of 1443400000 is about 1130.1312923387.

Adding to 1443400000 its reverse (43441), we get a palindrome (1443443441).

The spelling of 1443400000 in words is "one billion, four hundred forty-three million, four hundred thousand".