1396745064 has 192 divisors, whose sum is σ = 4468988160. Its totient is φ = 388523520.

The previous prime is 1396745057. The next prime is 1396745071. The reversal of 1396745064 is 4605476931.

1396745064 is a `hidden beast` number, since 139 + 6 + 7 + 4 + 506 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (1396745057) and next prime (1396745071).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3016497 + ... + 3016959.

It is an arithmetic number, because the mean of its divisors is an integer number (23275980).

Almost surely, 2^1396745064 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 1396745064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2234494080).

1396745064 is an abundant number, since it is smaller than the sum of its proper divisors (3072243096).

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

1396745064 is a wasteful number, since it uses less digits than its factorization.

1396745064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792 (or 785 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 1396745064 is about 37373.0526449205. The cubic root of 1396745064 is about 1117.8213024427.

The spelling of 1396745064 in words is "one billion, three hundred ninety-six million, seven hundred forty-five thousand, sixty-four".