395449642 has 16 divisors (see below), whose sum is σ = 690705792. Its totient is φ = 166280400.

The previous prime is 395449627. The next prime is 395449657. The reversal of 395449642 is 246944593.

It is an interprime number because it is at equal distance from previous prime (395449627) and next prime (395449657).

It is a junction number, because it is equal to n+sod(n) for n = 395449592 and 395449601.

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, 265734 + ... + 267217.

It is an arithmetic number, because the mean of its divisors is an integer number (43169112).

Almost surely, 2^395449642 is an apocalyptic number.

395449642 is a deficient number, since it is larger than the sum of its proper divisors (295256150).

395449642 is a wasteful number, since it uses less digits than its factorization.

395449642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533013.

The product of its digits is 933120, while the sum is 46.

The square root of 395449642 is about 19885.9156691363. The cubic root of 395449642 is about 734.0016940221.

The spelling of 395449642 in words is "three hundred ninety-five million, four hundred forty-nine thousand, six hundred forty-two".