1128907700 has 18 divisors (see below), whose sum is σ = 2449729926. Its totient is φ = 451563040.

The previous prime is 1128907693. The next prime is 1128907751. The reversal of 1128907700 is 77098211.

It can be written as a sum of positive squares in 3 ways, for example, as 152720164 + 976187536 = 12358^2 + 31244^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5644439 + ... + 5644638.

It is an arithmetic number, because the mean of its divisors is an integer number (136096107).

Almost surely, 2^1128907700 is an apocalyptic number.

1128907700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1128907700 is an abundant number, since it is smaller than the sum of its proper divisors (1320822226).

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

1128907700 is a wasteful number, since it uses less digits than its factorization.

1128907700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11289091 (or 11289084 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 35.

The square root of 1128907700 is about 33599.2217171767. The cubic root of 1128907700 is about 1041.2447189893.

The spelling of 1128907700 in words is "one billion, one hundred twenty-eight million, nine hundred seven thousand, seven hundred".