1066260384 has 108 divisors (see below), whose sum is σ = 3527274114. Its totient is φ = 304641792.

The previous prime is 1066260367. The next prime is 1066260389. The reversal of 1066260384 is 4830626601.

1066260384 is a `hidden beast` number, since 10 + 6 + 6 + 260 + 384 = 666.

It can be written as a sum of positive squares in only one way, i.e., 709050384 + 357210000 = 26628^2 + 18900^2 .

It is a super-2 number, since 2×1066260384² = 2273822412975654912, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1066260389) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 23667 + ... + 51890.

Almost surely, 2^1066260384 is an apocalyptic number.

1066260384 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1066260384 is an abundant number, since it is smaller than the sum of its proper divisors (2461013730).

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

1066260384 is a wasteful number, since it uses less digits than its factorization.

1066260384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75587 (or 75569 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 1066260384 is about 32653.6427370669. The cubic root of 1066260384 is about 1021.6161691178.

Adding to 1066260384 its reverse (4830626601), we get a palindrome (5896886985).

The spelling of 1066260384 in words is "one billion, sixty-six million, two hundred sixty thousand, three hundred eighty-four".