1368809930 has 16 divisors (see below), whose sum is σ = 2469717864. Its totient is φ = 546221760.

The previous prime is 1368809917. The next prime is 1368809963. The reversal of 1368809930 is 399088631.

It can be written as a sum of positive squares in 4 ways, for example, as 874325761 + 494484169 = 29569^2 + 22237^2 .

It is a Curzon number.

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, 158357 + ... + 166776.

Almost surely, 2^1368809930 is an apocalyptic number.

1368809930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1368809930 is a deficient number, since it is larger than the sum of its proper divisors (1100907934).

1368809930 is a wasteful number, since it uses less digits than its factorization.

1368809930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325561.

The product of its (nonzero) digits is 279936, while the sum is 47.

The square root of 1368809930 is about 36997.4313973281. The cubic root of 1368809930 is about 1110.3188570752.

The spelling of 1368809930 in words is "one billion, three hundred sixty-eight million, eight hundred nine thousand, nine hundred thirty".