1128403442 has 8 divisors (see below), whose sum is σ = 1692993756. Its totient is φ = 564072192.

The previous prime is 1128403439. The next prime is 1128403457. The reversal of 1128403442 is 2443048211.

It can be written as a sum of positive squares in 2 ways, for example, as 699126481 + 429276961 = 26441^2 + 20719^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 53483 + ... + 71534.

Almost surely, 2^1128403442 is an apocalyptic number.

1128403442 is a deficient number, since it is larger than the sum of its proper divisors (564590314).

1128403442 is a wasteful number, since it uses less digits than its factorization.

1128403442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129532.

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 1128403442 is about 33591.7168659180. The cubic root of 1128403442 is about 1041.0896622691.

The spelling of 1128403442 in words is "one billion, one hundred twenty-eight million, four hundred three thousand, four hundred forty-two".