1262216804 has 6 divisors (see below), whose sum is σ = 2208879414. Its totient is φ = 631108400.

The previous prime is 1262216803. The next prime is 1262216831. The reversal of 1262216804 is 4086122621.

It can be written as a sum of positive squares in only one way, i.e., 712783204 + 549433600 = 26698^2 + 23440^2 .

It is not an unprimeable number, because it can be changed into a prime (1262216803) 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 as a sum of consecutive naturals, namely, 157777097 + ... + 157777104.

It is an arithmetic number, because the mean of its divisors is an integer number (368146569).

Almost surely, 2^1262216804 is an apocalyptic number.

It is an amenable number.

1262216804 is a deficient number, since it is larger than the sum of its proper divisors (946662610).

1262216804 is a wasteful number, since it uses less digits than its factorization.

1262216804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315554205 (or 315554203 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 1262216804 is about 35527.6906651699. The cubic root of 1262216804 is about 1080.7153479802.

The spelling of 1262216804 in words is "one billion, two hundred sixty-two million, two hundred sixteen thousand, eight hundred four".