1391914368 has 320 divisors, whose sum is σ = 4665276000. Its totient is φ = 408748032.

The previous prime is 1391914339. The next prime is 1391914393. The reversal of 1391914368 is 8634191931.

1391914368 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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 39 ways as a sum of consecutive naturals, for example, 3099808 + ... + 3100256.

Almost surely, 2^1391914368 is an apocalyptic number.

1391914368 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 1391914368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2332638000).

1391914368 is an abundant number, since it is smaller than the sum of its proper divisors (3273361632).

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

1391914368 is a wasteful number, since it uses less digits than its factorization.

1391914368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511 (or 490 counting only the distinct ones).

The product of its digits is 139968, while the sum is 45.

The square root of 1391914368 is about 37308.3686054483. The cubic root of 1391914368 is about 1116.5311380875.

The spelling of 1391914368 in words is "one billion, three hundred ninety-one million, nine hundred fourteen thousand, three hundred sixty-eight".