1189630946 has 8 divisors (see below), whose sum is σ = 2039367360. Its totient is φ = 509841828.

The previous prime is 1189630933. The next prime is 1189630961. The reversal of 1189630946 is 6490369811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1189630946.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42486806 + ... + 42486833.

It is an arithmetic number, because the mean of its divisors is an integer number (254920920).

Almost surely, 2^1189630946 is an apocalyptic number.

1189630946 is a deficient number, since it is larger than the sum of its proper divisors (849736414).

1189630946 is an equidigital number, since it uses as much as digits as its factorization.

1189630946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84973648.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 1189630946 is about 34491.0270360278. The cubic root of 1189630946 is about 1059.5889429072.

The spelling of 1189630946 in words is "one billion, one hundred eighty-nine million, six hundred thirty thousand, nine hundred forty-six".