1195400642 has 8 divisors (see below), whose sum is σ = 1794881100. Its totient is φ = 597106944.

The previous prime is 1195400639. The next prime is 1195400681. The reversal of 1195400642 is 2460045911.

It can be written as a sum of positive squares in 2 ways, for example, as 1160696761 + 34703881 = 34069^2 + 5891^2 .

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 = 1195400599 and 1195400608.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294167 + ... + 298202.

Almost surely, 2^1195400642 is an apocalyptic number.

1195400642 is a deficient number, since it is larger than the sum of its proper divisors (599480458).

1195400642 is a wasteful number, since it uses less digits than its factorization.

1195400642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 593380.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 1195400642 is about 34574.5664036442. The cubic root of 1195400642 is about 1061.2991789467.

The spelling of 1195400642 in words is "one billion, one hundred ninety-five million, four hundred thousand, six hundred forty-two".