1368750749 has 8 divisors (see below), whose sum is σ = 1380189888. Its totient is φ = 1357326880.

The previous prime is 1368750743. The next prime is 1368750763. The reversal of 1368750749 is 9470578631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1368750749 is a prime.

It is a super-2 number, since 2×1368750749² = 3746957225776122002, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1368750697 and 1368750706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1368750743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239129 + ... + 244785.

It is an arithmetic number, because the mean of its divisors is an integer number (172523736).

Almost surely, 2^1368750749 is an apocalyptic number.

It is an amenable number.

1368750749 is a deficient number, since it is larger than the sum of its proper divisors (11439139).

1368750749 is a wasteful number, since it uses less digits than its factorization.

1368750749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7635.

The product of its (nonzero) digits is 1270080, while the sum is 50.

The square root of 1368750749 is about 36996.6315899164. The cubic root of 1368750749 is about 1110.3028551634.

The spelling of 1368750749 in words is "one billion, three hundred sixty-eight million, seven hundred fifty thousand, seven hundred forty-nine".