395402486550 has 48 divisors (see below), whose sum is σ = 995233985472. Its totient is φ = 103866919200.

The previous prime is 395402486533. The next prime is 395402486653. The reversal of 395402486550 is 55684204593.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 395402486493 and 395402486502.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 19661716 + ... + 19681815.

It is an arithmetic number, because the mean of its divisors is an integer number (20734041364).

Almost surely, 2^395402486550 is an apocalyptic number.

395402486550 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

395402486550 is an abundant number, since it is smaller than the sum of its proper divisors (599831498922).

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

395402486550 is a wasteful number, since it uses less digits than its factorization.

395402486550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39343613 (or 39343608 counting only the distinct ones).

The product of its (nonzero) digits is 5184000, while the sum is 51.

The spelling of 395402486550 in words is "three hundred ninety-five billion, four hundred two million, four hundred eighty-six thousand, five hundred fifty".