1128378416 has 20 divisors (see below), whose sum is σ = 2384982024. Its totient is φ = 512899200.

The previous prime is 1128378389. The next prime is 1128378457. The reversal of 1128378416 is 6148738211.

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, 3205445 + ... + 3205796.

Almost surely, 2^1128378416 is an apocalyptic number.

1128378416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1128378416 is an abundant number, since it is smaller than the sum of its proper divisors (1256603608).

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

1128378416 is a wasteful number, since it uses less digits than its factorization.

1128378416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6411260 (or 6411254 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 1128378416 is about 33591.3443613083. The cubic root of 1128378416 is about 1041.0819657008.

The spelling of 1128378416 in words is "one billion, one hundred twenty-eight million, three hundred seventy-eight thousand, four hundred sixteen".