1143052728 has 16 divisors (see below), whose sum is σ = 2857631880. Its totient is φ = 381017568.

The previous prime is 1143052717. The next prime is 1143052759. The reversal of 1143052728 is 8272503411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23813575 + ... + 23813622.

Almost surely, 2^1143052728 is an apocalyptic number.

It is an amenable number.

1143052728 is an abundant number, since it is smaller than the sum of its proper divisors (1714579152).

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

1143052728 is a wasteful number, since it uses less digits than its factorization.

1143052728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47627206 (or 47627202 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 1143052728 is about 33809.0628086612. The cubic root of 1143052728 is about 1045.5755558999.

The spelling of 1143052728 in words is "one billion, one hundred forty-three million, fifty-two thousand, seven hundred twenty-eight".