1128730 has 16 divisors (see below), whose sum is σ = 2082024. Its totient is φ = 440320.

The previous prime is 1128727. The next prime is 1128731. The reversal of 1128730 is 378211.

It can be written as a sum of positive squares in 4 ways, for example, as 881721 + 247009 = 939^2 + 497^2 .

It is not an unprimeable number, because it can be changed into a prime (1128731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 967 + ... + 1786.

2^1128730 is an apocalyptic number.

1128730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1128730 is a deficient number, since it is larger than the sum of its proper divisors (953294).

1128730 is a wasteful number, since it uses less digits than its factorization.

1128730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1128730 is about 1062.4170555860. The cubic root of 1128730 is about 104.1190082430.

The spelling of 1128730 in words is "one million, one hundred twenty-eight thousand, seven hundred thirty".