1443376428 has 24 divisors (see below), whose sum is σ = 3626946288. Its totient is φ = 444115776.

The previous prime is 1443376427. The next prime is 1443376433. The reversal of 1443376428 is 8246733441.

It is a self number, because there is not a number n which added to its sum of digits gives 1443376428.

It is not an unprimeable number, because it can be changed into a prime (1443376421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4626051 + ... + 4626362.

It is an arithmetic number, because the mean of its divisors is an integer number (151122762).

Almost surely, 2^1443376428 is an apocalyptic number.

It is an amenable number.

1443376428 is an abundant number, since it is smaller than the sum of its proper divisors (2183569860).

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

1443376428 is a wasteful number, since it uses less digits than its factorization.

1443376428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9252433 (or 9252431 counting only the distinct ones).

The product of its digits is 387072, while the sum is 42.

The square root of 1443376428 is about 37991.7942192785. The cubic root of 1443376428 is about 1130.1251402904.

The spelling of 1443376428 in words is "one billion, four hundred forty-three million, three hundred seventy-six thousand, four hundred twenty-eight".