1143432450 has 120 divisors (see below), whose sum is σ = 3245185152. Its totient is φ = 298378080.

The previous prime is 1143432397. The next prime is 1143432469. The reversal of 1143432450 is 542343411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 59 ways as a sum of consecutive naturals, for example, 187347 + ... + 193353.

Almost surely, 2^1143432450 is an apocalyptic number.

1143432450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1143432450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1622592576).

1143432450 is an abundant number, since it is smaller than the sum of its proper divisors (2101752702).

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

1143432450 is a wasteful number, since it uses less digits than its factorization.

1143432450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6078 (or 6064 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1143432450 is about 33814.6780259697. The cubic root of 1143432450 is about 1045.6913231127.

Adding to 1143432450 its reverse (542343411), we get a palindrome (1685775861).

The spelling of 1143432450 in words is "one billion, one hundred forty-three million, four hundred thirty-two thousand, four hundred fifty".