1242966186 has 192 divisors, whose sum is σ = 3610054656. Its totient is φ = 299174400.

The previous prime is 1242966167. The next prime is 1242966211. The reversal of 1242966186 is 6816692421.

1242966186 is a `hidden beast` number, since 1 + 2 + 4 + 29 + 6 + 618 + 6 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1672531 + ... + 1673273.

It is an arithmetic number, because the mean of its divisors is an integer number (18802368).

Almost surely, 2^1242966186 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242966186, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1805027328).

1242966186 is an abundant number, since it is smaller than the sum of its proper divisors (2367088470).

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

1242966186 is a wasteful number, since it uses less digits than its factorization.

1242966186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857 (or 854 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 1242966186 is about 35255.7255775569. The cubic root of 1242966186 is about 1075.1930242177.

The spelling of 1242966186 in words is "one billion, two hundred forty-two million, nine hundred sixty-six thousand, one hundred eighty-six".