1066436442 has 20 divisors (see below), whose sum is σ = 2389607946. Its totient is φ = 355478760.

The previous prime is 1066436431. The next prime is 1066436447. The reversal of 1066436442 is 2446346601.

1066436442 is a `hidden beast` number, since 1 + 0 + 6 + 6 + 4 + 3 + 644 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 634586481 + 431849961 = 25191^2 + 20781^2 .

It is a super-2 number, since 2×1066436442² = 2274573369651238728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066436397 and 1066436406.

It is not an unprimeable number, because it can be changed into a prime (1066436447) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 3291309 + ... + 3291632.

Almost surely, 2^1066436442 is an apocalyptic number.

1066436442 is an abundant number, since it is smaller than the sum of its proper divisors (1323171504).

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

1066436442 is an equidigital number, since it uses as much as digits as its factorization.

1066436442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6582955 (or 6582946 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The square root of 1066436442 is about 32656.3384659089. The cubic root of 1066436442 is about 1021.6723948464.

The spelling of 1066436442 in words is "one billion, sixty-six million, four hundred thirty-six thousand, four hundred forty-two".