1066405230 has 128 divisors (see below), whose sum is σ = 3123394560. Its totient is φ = 256763520.

The previous prime is 1066405217. The next prime is 1066405259. The reversal of 1066405230 is 325046601.

1066405230 is a `hidden beast` number, since 10 + 6 + 640 + 5 + 2 + 3 + 0 = 666.

It is a super-2 number, since 2×1066405230² = 2274440229142705800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1066405194 and 1066405203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 465147 + ... + 467433.

It is an arithmetic number, because the mean of its divisors is an integer number (24401520).

Almost surely, 2^1066405230 is an apocalyptic number.

1066405230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1066405230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1561697280).

1066405230 is an abundant number, since it is smaller than the sum of its proper divisors (2056989330).

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

1066405230 is a wasteful number, since it uses less digits than its factorization.

1066405230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2471 (or 2465 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 1066405230 is about 32655.8605766254. The cubic root of 1066405230 is about 1021.6624274608.

The spelling of 1066405230 in words is "one billion, sixty-six million, four hundred five thousand, two hundred thirty".