395894395260 has 384 divisors, whose sum is σ = 1552884480000. Its totient is φ = 81491650560.

The previous prime is 395894395153. The next prime is 395894395279. The reversal of 395894395260 is 62593498593.

395894395260 is a `hidden beast` number, since 3 + 9 + 589 + 43 + 9 + 5 + 2 + 6 + 0 = 666.

It is a super-2 number, since 2×395894395260² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1916491 + ... + 2112989.

It is an arithmetic number, because the mean of its divisors is an integer number (4043970000).

Almost surely, 2^395894395260 is an apocalyptic number.

395894395260 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 395894395260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (776442240000).

395894395260 is an abundant number, since it is smaller than the sum of its proper divisors (1156990084740).

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

395894395260 is a wasteful number, since it uses less digits than its factorization.

395894395260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196578 (or 196570 counting only the distinct ones).

The product of its (nonzero) digits is 62985600, while the sum is 63.

The spelling of 395894395260 in words is "three hundred ninety-five billion, eight hundred ninety-four million, three hundred ninety-five thousand, two hundred sixty".