395661051 has 16 divisors (see below), whose sum is σ = 587239200. Its totient is φ = 263290464.

The previous prime is 395661041. The next prime is 395661107. The reversal of 395661051 is 150166593.

395661051 is a `hidden beast` number, since 39 + 5 + 6 + 610 + 5 + 1 = 666.

It is not a de Polignac number, because 395661051 - 2⁶ = 395660987 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 395660997 and 395661015.

It is not an unprimeable number, because it can be changed into a prime (395661041) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1885 + ... + 28193.

It is an arithmetic number, because the mean of its divisors is an integer number (36702450).

Almost surely, 2^395661051 is an apocalyptic number.

395661051 is a deficient number, since it is larger than the sum of its proper divisors (191578149).

395661051 is a wasteful number, since it uses less digits than its factorization.

395661051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26875 (or 26869 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 395661051 is about 19891.2305049235. The cubic root of 395661051 is about 734.1324708253.

The spelling of 395661051 in words is "three hundred ninety-five million, six hundred sixty-one thousand, fifty-one".