395534837988 has 120 divisors (see below), whose sum is σ = 1094444070720. Its totient is φ = 124215301440.

The previous prime is 395534837977. The next prime is 395534838029. The reversal of 395534837988 is 889738435593.

It is a happy number.

395534837988 is a `hidden beast` number, since 3 + 9 + 5 + 53 + 483 + 7 + 98 + 8 = 666.

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, 936745 + ... + 1291727.

It is an arithmetic number, because the mean of its divisors is an integer number (9120367256).

Almost surely, 2^395534837988 is an apocalyptic number.

395534837988 is a gapful number since it is divisible by the number (38) 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 395534837988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (547222035360).

395534837988 is an abundant number, since it is smaller than the sum of its proper divisors (698909232732).

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

395534837988 is a wasteful number, since it uses less digits than its factorization.

395534837988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355199 (or 355188 counting only the distinct ones).

The product of its digits is 783820800, while the sum is 72.

The spelling of 395534837988 in words is "three hundred ninety-five billion, five hundred thirty-four million, eight hundred thirty-seven thousand, nine hundred eighty-eight".