1189949192 has 32 divisors (see below), whose sum is σ = 2267126400. Its totient is φ = 585434304.

The previous prime is 1189949179. The next prime is 1189949203. The reversal of 1189949192 is 2919499811.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190958 + ... + 197090.

It is an arithmetic number, because the mean of its divisors is an integer number (70847700).

Almost surely, 2^1189949192 is an apocalyptic number.

It is an amenable number.

1189949192 is a deficient number, since it is larger than the sum of its proper divisors (1077177208).

1189949192 is a wasteful number, since it uses less digits than its factorization.

1189949192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6525 (or 6521 counting only the distinct ones).

The product of its digits is 419904, while the sum is 53.

The square root of 1189949192 is about 34495.6401882905. The cubic root of 1189949192 is about 1059.6834203523.

The spelling of 1189949192 in words is "one billion, one hundred eighty-nine million, nine hundred forty-nine thousand, one hundred ninety-two".