4391340912 has 320 divisors, whose sum is σ = 14819051520. Its totient is φ = 1219276800.

The previous prime is 4391340881. The next prime is 4391340931. The reversal of 4391340912 is 2190431934.

4391340912 is a `hidden beast` number, since 439 + 134 + 0 + 91 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24261462 + ... + 24261642.

It is an arithmetic number, because the mean of its divisors is an integer number (46309536).

Almost surely, 2^4391340912 is an apocalyptic number.

4391340912 is a gapful number since it is divisible by the number (42) 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 4391340912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7409525760).

4391340912 is an abundant number, since it is smaller than the sum of its proper divisors (10427710608).

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

4391340912 is a wasteful number, since it uses less digits than its factorization.

4391340912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 4391340912 is about 66267.1933312405. The cubic root of 4391340912 is about 1637.5668996773.

The spelling of 4391340912 in words is "four billion, three hundred ninety-one million, three hundred forty thousand, nine hundred twelve".