395413812 has 60 divisors (see below), whose sum is σ = 1094510340. Its totient is φ = 124049664.

The previous prime is 395413757. The next prime is 395413813. The reversal of 395413812 is 218314593.

395413812 is a `hidden beast` number, since 39 + 541 + 3 + 81 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 235745316 + 159668496 = 15354^2 + 12636^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395413813) 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 19 ways as a sum of consecutive naturals, for example, 30387 + ... + 41402.

It is an arithmetic number, because the mean of its divisors is an integer number (18241839).

Almost surely, 2^395413812 is an apocalyptic number.

It is an amenable number.

395413812 is an abundant number, since it is smaller than the sum of its proper divisors (699096528).

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

395413812 is a wasteful number, since it uses less digits than its factorization.

395413812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71822 (or 71811 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 395413812 is about 19885.0147598638. The cubic root of 395413812 is about 733.9795251016.

It can be divided in two parts, 3954 and 13812, that added together give a triangular number (17766 = T₁₈₈).

The spelling of 395413812 in words is "three hundred ninety-five million, four hundred thirteen thousand, eight hundred twelve".