1443442500 has 90 divisors (see below), whose sum is σ = 4559488934. Its totient is φ = 384912000.

The previous prime is 1443442499. The next prime is 1443442513. The reversal of 1443442500 is 52443441.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 152621316 + 1290821184 = 12354^2 + 35928^2 .

It is a tau number, because it is divible by the number of its divisors (90).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 9577 + ... + 54576.

Almost surely, 2^1443442500 is an apocalyptic number.

1443442500 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 1443442500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2279744467).

1443442500 is an abundant number, since it is smaller than the sum of its proper divisors (3116046434).

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

1443442500 is a wasteful number, since it uses less digits than its factorization.

1443442500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64183 (or 64163 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 1443442500 is about 37992.6637655219. The cubic root of 1443442500 is about 1130.1423842302.

Adding to 1443442500 its reverse (52443441), we get a palindrome (1495885941).

The spelling of 1443442500 in words is "one billion, four hundred forty-three million, four hundred forty-two thousand, five hundred".