395350840 has 64 divisors (see below), whose sum is σ = 916997760. Its totient is φ = 153323520.

The previous prime is 395350819. The next prime is 395350847. The reversal of 395350840 is 48053593.

It is a self number, because there is not a number n which added to its sum of digits gives 395350840.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395350847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211510 + ... + 213370.

It is an arithmetic number, because the mean of its divisors is an integer number (14328090).

Almost surely, 2^395350840 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 395350840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (458498880).

395350840 is an abundant number, since it is smaller than the sum of its proper divisors (521646920).

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

395350840 is a wasteful number, since it uses less digits than its factorization.

395350840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2032 (or 2028 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 395350840 is about 19883.4312934161. The cubic root of 395350840 is about 733.9405594989.

The spelling of 395350840 in words is "three hundred ninety-five million, three hundred fifty thousand, eight hundred forty".