1368650387 has 24 divisors (see below), whose sum is σ = 1554803136. Its totient is φ = 1202812416.

The previous prime is 1368650383. The next prime is 1368650401. The reversal of 1368650387 is 7830568631.

It is a happy number.

It is not a de Polignac number, because 1368650387 - 2² = 1368650383 is a prime.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1368650383) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 291563 + ... + 296219.

It is an arithmetic number, because the mean of its divisors is an integer number (64783464).

Almost surely, 2^1368650387 is an apocalyptic number.

1368650387 is a deficient number, since it is larger than the sum of its proper divisors (186152749).

1368650387 is a wasteful number, since it uses less digits than its factorization.

1368650387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4767 (or 4754 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 47.

The square root of 1368650387 is about 36995.2751983277. The cubic root of 1368650387 is about 1110.2757172936.

The spelling of 1368650387 in words is "one billion, three hundred sixty-eight million, six hundred fifty thousand, three hundred eighty-seven".