1323663730 has 16 divisors (see below), whose sum is σ = 2459453184. Its totient is φ = 512385840.

The previous prime is 1323663697. The next prime is 1323663749. The reversal of 1323663730 is 373663231.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2134632 + ... + 2135251.

It is an arithmetic number, because the mean of its divisors is an integer number (153715824).

Almost surely, 2^1323663730 is an apocalyptic number.

1323663730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1323663730 is a deficient number, since it is larger than the sum of its proper divisors (1135789454).

1323663730 is a wasteful number, since it uses less digits than its factorization.

1323663730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4269921.

The product of its (nonzero) digits is 40824, while the sum is 34.

The square root of 1323663730 is about 36382.1897361882. The cubic root of 1323663730 is about 1097.9752643999.

The spelling of 1323663730 in words is "one billion, three hundred twenty-three million, six hundred sixty-three thousand, seven hundred thirty".