1066249836 has 72 divisors (see below), whose sum is σ = 2804465664. Its totient is φ = 341197920.

The previous prime is 1066249819. The next prime is 1066249841. The reversal of 1066249836 is 6389426601.

1066249836 is a `hidden beast` number, since 10 + 6 + 624 + 9 + 8 + 3 + 6 = 666.

It is a super-2 number, since 2×1066249836² = 2273777425540053792, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066249791 and 1066249800.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137971 + ... + 145493.

It is an arithmetic number, because the mean of its divisors is an integer number (38950912).

Almost surely, 2^1066249836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1066249836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1402232832).

1066249836 is an abundant number, since it is smaller than the sum of its proper divisors (1738215828).

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

1066249836 is a wasteful number, since it uses less digits than its factorization.

1066249836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7691 (or 7686 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 1066249836 is about 32653.4812232938. The cubic root of 1066249836 is about 1021.6128003213.

The spelling of 1066249836 in words is "one billion, sixty-six million, two hundred forty-nine thousand, eight hundred thirty-six".