1195778342 has 32 divisors (see below), whose sum is σ = 1979769600. Its totient is φ = 537174880.

The previous prime is 1195778341. The next prime is 1195778347. The reversal of 1195778342 is 2438775911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1195778341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 743303 + ... + 744909.

It is an arithmetic number, because the mean of its divisors is an integer number (61867800).

Almost surely, 2^1195778342 is an apocalyptic number.

1195778342 is a deficient number, since it is larger than the sum of its proper divisors (783991258).

1195778342 is a wasteful number, since it uses less digits than its factorization.

1195778342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996.

The product of its digits is 423360, while the sum is 47.

The square root of 1195778342 is about 34580.0280798035. The cubic root of 1195778342 is about 1061.4109435650.

The spelling of 1195778342 in words is "one billion, one hundred ninety-five million, seven hundred seventy-eight thousand, three hundred forty-two".