1386746064 has 180 divisors, whose sum is σ = 4379558976. Its totient is φ = 406224000.

The previous prime is 1386746021. The next prime is 1386746071. The reversal of 1386746064 is 4606476831.

It is a happy number.

1386746064 is a `hidden beast` number, since 1 + 38 + 6 + 7 + 4 + 606 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1521769 + ... + 1522679.

Almost surely, 2^1386746064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1386746064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2189779488).

1386746064 is an abundant number, since it is smaller than the sum of its proper divisors (2992812912).

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

1386746064 is a wasteful number, since it uses less digits than its factorization.

1386746064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998 (or 958 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 1386746064 is about 37239.0395150036. The cubic root of 1386746064 is about 1115.1474970943.

The spelling of 1386746064 in words is "one billion, three hundred eighty-six million, seven hundred forty-six thousand, sixty-four".