1119628728 has 48 divisors (see below), whose sum is σ = 3035806800. Its totient is φ = 372781440.

The previous prime is 1119628717. The next prime is 1119628739. The reversal of 1119628728 is 8278269111.

1119628728 is a `hidden beast` number, since 1 + 1 + 19 + 628 + 7 + 2 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (1119628717) and next prime (1119628739).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57708 + ... + 74628.

It is an arithmetic number, because the mean of its divisors is an integer number (63245975).

Almost surely, 2^1119628728 is an apocalyptic number.

1119628728 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1119628728 is an abundant number, since it is smaller than the sum of its proper divisors (1916178072).

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

1119628728 is a wasteful number, since it uses less digits than its factorization.

1119628728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17852 (or 17845 counting only the distinct ones).

The product of its digits is 96768, while the sum is 45.

The square root of 1119628728 is about 33460.8536651413. The cubic root of 1119628728 is about 1038.3840560411.

The spelling of 1119628728 in words is "one billion, one hundred nineteen million, six hundred twenty-eight thousand, seven hundred twenty-eight".