1191974466 has 16 divisors (see below), whose sum is σ = 2390344704. Its totient is φ = 396258864.

The previous prime is 1191974461. The next prime is 1191974477. The reversal of 1191974466 is 6644791911.

It is not an unprimeable number, because it can be changed into a prime (1191974461) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 264066 + ... + 268541.

It is an arithmetic number, because the mean of its divisors is an integer number (149396544).

Almost surely, 2^1191974466 is an apocalyptic number.

1191974466 is an abundant number, since it is smaller than the sum of its proper divisors (1198370238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1191974466 is a wasteful number, since it uses less digits than its factorization.

1191974466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532985.

The product of its digits is 326592, while the sum is 48.

The square root of 1191974466 is about 34524.9832150575. The cubic root of 1191974466 is about 1060.2842675352.

The spelling of 1191974466 in words is "one billion, one hundred ninety-one million, nine hundred seventy-four thousand, four hundred sixty-six".