1128650544 has 80 divisors (see below), whose sum is σ = 3702461440. Its totient is φ = 322470720.

The previous prime is 1128650539. The next prime is 1128650603. The reversal of 1128650544 is 4450568211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1128650499 and 1128650508.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183592 + ... + 189639.

It is an arithmetic number, because the mean of its divisors is an integer number (46280768).

Almost surely, 2^1128650544 is an apocalyptic number.

1128650544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1128650544 is an abundant number, since it is smaller than the sum of its proper divisors (2573810896).

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

1128650544 is a wasteful number, since it uses less digits than its factorization.

1128650544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373255 (or 373243 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 1128650544 is about 33595.3946843909. The cubic root of 1128650544 is about 1041.1656506235.

The spelling of 1128650544 in words is "one billion, one hundred twenty-eight million, six hundred fifty thousand, five hundred forty-four".