1363658868 has 288 divisors, whose sum is σ = 4379424000. Its totient is φ = 363813120.

The previous prime is 1363658867. The next prime is 1363658869. The reversal of 1363658868 is 8688563631.

It is an interprime number because it is at equal distance from previous prime (1363658867) and next prime (1363658869).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1363658867) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3907158 + ... + 3907506.

Almost surely, 2^1363658868 is an apocalyptic number.

1363658868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1363658868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2189712000).

1363658868 is an abundant number, since it is smaller than the sum of its proper divisors (3015765132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1363658868 is a wasteful number, since it uses less digits than its factorization.

1363658868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420 (or 401 counting only the distinct ones).

The product of its digits is 4976640, while the sum is 54.

The square root of 1363658868 is about 36927.7520030667. The cubic root of 1363658868 is about 1108.9243341300.

The spelling of 1363658868 in words is "one billion, three hundred sixty-three million, six hundred fifty-eight thousand, eight hundred sixty-eight".