1166442942 has 24 divisors (see below), whose sum is σ = 2713765896. Its totient is φ = 333269328.

The previous prime is 1166442931. The next prime is 1166442943. The reversal of 1166442942 is 2492446611.

It is a self number, because there is not a number n which added to its sum of digits gives 1166442942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1166442943) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1983453 + ... + 1984040.

It is an arithmetic number, because the mean of its divisors is an integer number (113073579).

Almost surely, 2^1166442942 is an apocalyptic number.

1166442942 is an abundant number, since it is smaller than the sum of its proper divisors (1547322954).

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

1166442942 is a wasteful number, since it uses less digits than its factorization.

1166442942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3967512 (or 3967505 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 1166442942 is about 34153.2274023993. The cubic root of 1166442942 is about 1052.6593036197.

The spelling of 1166442942 in words is "one billion, one hundred sixty-six million, four hundred forty-two thousand, nine hundred forty-two".