1386798336 has 216 divisors, whose sum is σ = 4985757504. Its totient is φ = 360161280.

The previous prime is 1386798323. The next prime is 1386798349. The reversal of 1386798336 is 6338976831.

It is an interprime number because it is at equal distance from previous prime (1386798323) and next prime (1386798349).

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 173500 + ... + 181316.

Almost surely, 2^1386798336 is an apocalyptic number.

1386798336 is a gapful number since it is divisible by the number (16) 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 1386798336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2492878752).

1386798336 is an abundant number, since it is smaller than the sum of its proper divisors (3598959168).

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

1386798336 is a wasteful number, since it uses less digits than its factorization.

1386798336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7857 (or 7840 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 54.

The square root of 1386798336 is about 37239.7413524853. The cubic root of 1386798336 is about 1115.1615083731.

It can be divided in two parts, 1386798 and 336, that multiplied together give a triangular number (465964128 = T₃₀₅₂₇).

The spelling of 1386798336 in words is "one billion, three hundred eighty-six million, seven hundred ninety-eight thousand, three hundred thirty-six".