1042605812 has 6 divisors (see below), whose sum is σ = 1824560178. Its totient is φ = 521302904.

The previous prime is 1042605763. The next prime is 1042605859. The reversal of 1042605812 is 2185062401.

It can be written as a sum of positive squares in only one way, i.e., 909987556 + 132618256 = 30166^2 + 11516^2 .

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 130325723 + ... + 130325730.

It is an arithmetic number, because the mean of its divisors is an integer number (304093363).

Almost surely, 2^1042605812 is an apocalyptic number.

It is an amenable number.

1042605812 is a deficient number, since it is larger than the sum of its proper divisors (781954366).

1042605812 is a wasteful number, since it uses less digits than its factorization.

1042605812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260651457 (or 260651455 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 1042605812 is about 32289.4071175053. The cubic root of 1042605812 is about 1014.0048849076.

The spelling of 1042605812 in words is "one billion, forty-two million, six hundred five thousand, eight hundred twelve".