1042666045 has 8 divisors (see below), whose sum is σ = 1259169624. Its totient is φ = 828819264.

The previous prime is 1042666043. The next prime is 1042666057. The reversal of 1042666045 is 5406662401.

It can be written as a sum of positive squares in 4 ways, for example, as 23396569 + 1019269476 = 4837^2 + 31926^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1042666045 - 2¹ = 1042666043 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1042666045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042666043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 663334 + ... + 664903.

It is an arithmetic number, because the mean of its divisors is an integer number (157396203).

Almost surely, 2^1042666045 is an apocalyptic number.

It is an amenable number.

1042666045 is a deficient number, since it is larger than the sum of its proper divisors (216503579).

1042666045 is a wasteful number, since it uses less digits than its factorization.

1042666045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328399.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 1042666045 is about 32290.3398092990. The cubic root of 1042666045 is about 1014.0244114245.

The spelling of 1042666045 in words is "one billion, forty-two million, six hundred sixty-six thousand, forty-five".