1368326391 has 8 divisors (see below), whose sum is σ = 1883288064. Its totient is φ = 882791160.

The previous prime is 1368326383. The next prime is 1368326429. The reversal of 1368326391 is 1936238631.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1368326391 - 2³ = 1368326383 is a prime.

It is a super-2 number, since 2×1368326391² = 3744634224614169762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368326371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7356501 + ... + 7356686.

It is an arithmetic number, because the mean of its divisors is an integer number (235411008).

Almost surely, 2^1368326391 is an apocalyptic number.

1368326391 is a deficient number, since it is larger than the sum of its proper divisors (514961673).

1368326391 is a wasteful number, since it uses less digits than its factorization.

1368326391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14713221.

The product of its digits is 139968, while the sum is 42.

The square root of 1368326391 is about 36990.8960556513. The cubic root of 1368326391 is about 1110.1880997681.

The spelling of 1368326391 in words is "one billion, three hundred sixty-eight million, three hundred twenty-six thousand, three hundred ninety-one".