395042155 has 16 divisors (see below), whose sum is σ = 487648224. Its totient is φ = 306996480.

The previous prime is 395042113. The next prime is 395042173. The reversal of 395042155 is 551240593.

It is not a de Polignac number, because 395042155 - 2⁷ = 395042027 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 395042155.

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 15 ways as a sum of consecutive naturals, for example, 148719 + ... + 151351.

It is an arithmetic number, because the mean of its divisors is an integer number (30478014).

Almost surely, 2^395042155 is an apocalyptic number.

395042155 is a deficient number, since it is larger than the sum of its proper divisors (92606069).

395042155 is a wasteful number, since it uses less digits than its factorization.

395042155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3486.

The product of its (nonzero) digits is 27000, while the sum is 34.

The square root of 395042155 is about 19875.6674101777. The cubic root of 395042155 is about 733.7494925541.

The spelling of 395042155 in words is "three hundred ninety-five million, forty-two thousand, one hundred fifty-five".