1180442628 has 18 divisors (see below), whose sum is σ = 2983896734. Its totient is φ = 393480864.

The previous prime is 1180442611. The next prime is 1180442629. The reversal of 1180442628 is 8262440811.

It can be written as a sum of positive squares in only one way, i.e., 646278084 + 534164544 = 25422^2 + 23112^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 32790073 = 1180442628 / (1 + 1 + 8 + 0 + 4 + 4 + 2 + 6 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 1180442592 and 1180442601.

It is not an unprimeable number, because it can be changed into a prime (1180442629) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16395001 + ... + 16395072.

Almost surely, 2^1180442628 is an apocalyptic number.

1180442628 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1180442628 is an abundant number, since it is smaller than the sum of its proper divisors (1803454106).

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

1180442628 is a wasteful number, since it uses less digits than its factorization.

1180442628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32790083 (or 32790078 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 1180442628 is about 34357.5701701968. The cubic root of 1180442628 is about 1056.8539171761.

The spelling of 1180442628 in words is "one billion, one hundred eighty million, four hundred forty-two thousand, six hundred twenty-eight".