1266724730 has 32 divisors (see below), whose sum is σ = 2337901056. Its totient is φ = 493932544.

The previous prime is 1266724691. The next prime is 1266724733. The reversal of 1266724730 is 374276621.

It is not an unprimeable number, because it can be changed into a prime (1266724733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115547 + ... + 126033.

It is an arithmetic number, because the mean of its divisors is an integer number (73059408).

Almost surely, 2^1266724730 is an apocalyptic number.

1266724730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1266724730 is a deficient number, since it is larger than the sum of its proper divisors (1071176326).

1266724730 is a wasteful number, since it uses less digits than its factorization.

1266724730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10798.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 1266724730 is about 35591.0765501691. The cubic root of 1266724730 is about 1082.0003877941. Note that the first 3 decimals are identical.

The spelling of 1266724730 in words is "one billion, two hundred sixty-six million, seven hundred twenty-four thousand, seven hundred thirty".