395647474320 has 800 divisors, whose sum is σ = 1673322900480. Its totient is φ = 84626519040.

The previous prime is 395647474289. The next prime is 395647474363. The reversal of 395647474320 is 23474746593.

It is a happy number.

395647474320 is a `hidden beast` number, since 3 + 9 + 564 + 7 + 4 + 74 + 3 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 71529955 + ... + 71535485.

Almost surely, 2^395647474320 is an apocalyptic number.

395647474320 is a gapful number since it is divisible by the number (30) 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 395647474320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (836661450240).

395647474320 is an abundant number, since it is smaller than the sum of its proper divisors (1277675426160).

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

395647474320 is a wasteful number, since it uses less digits than its factorization.

395647474320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5665 (or 5650 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 54.

The spelling of 395647474320 in words is "three hundred ninety-five billion, six hundred forty-seven million, four hundred seventy-four thousand, three hundred twenty".