395690683490 has 16 divisors (see below), whose sum is σ = 713829526200. Its totient is φ = 157923763200.

The previous prime is 395690683441. The next prime is 395690683529. The reversal of 395690683490 is 94386096593.

It can be written as a sum of positive squares in 4 ways, for example, as 247883498641 + 147807184849 = 497879^2 + 384457^2 .

It is a super-2 number, since 2×395690683490² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 44059061 + ... + 44068040.

Almost surely, 2^395690683490 is an apocalyptic number.

395690683490 is a deficient number, since it is larger than the sum of its proper divisors (318138842710).

395690683490 is a wasteful number, since it uses less digits than its factorization.

395690683490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88127557.

The product of its (nonzero) digits is 37791360, while the sum is 62.

The spelling of 395690683490 in words is "three hundred ninety-five billion, six hundred ninety million, six hundred eighty-three thousand, four hundred ninety".