1266324988 has 6 divisors (see below), whose sum is σ = 2216068736. Its totient is φ = 633162492.

The previous prime is 1266324923. The next prime is 1266324989. The reversal of 1266324988 is 8894236621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266324989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158290620 + ... + 158290627.

Almost surely, 2^1266324988 is an apocalyptic number.

It is an amenable number.

1266324988 is a deficient number, since it is larger than the sum of its proper divisors (949743748).

1266324988 is a wasteful number, since it uses less digits than its factorization.

1266324988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316581251 (or 316581249 counting only the distinct ones).

The product of its digits is 995328, while the sum is 49.

The square root of 1266324988 is about 35585.4603454838. The cubic root of 1266324988 is about 1081.8865597214.

The spelling of 1266324988 in words is "one billion, two hundred sixty-six million, three hundred twenty-four thousand, nine hundred eighty-eight".