1195640642 has 8 divisors (see below), whose sum is σ = 2049669696. Its totient is φ = 512417412.

The previous prime is 1195640603. The next prime is 1195640653. The reversal of 1195640642 is 2460465911.

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

It is a junction number, because it is equal to n+sod(n) for n = 1195640596 and 1195640605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42701438 + ... + 42701465.

It is an arithmetic number, because the mean of its divisors is an integer number (256208712).

Almost surely, 2^1195640642 is an apocalyptic number.

1195640642 is a deficient number, since it is larger than the sum of its proper divisors (854029054).

1195640642 is an equidigital number, since it uses as much as digits as its factorization.

1195640642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85402912.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1195640642 is about 34578.0369888170. The cubic root of 1195640642 is about 1061.3701996990.

The spelling of 1195640642 in words is "one billion, one hundred ninety-five million, six hundred forty thousand, six hundred forty-two".