395390029 has 16 divisors (see below), whose sum is σ = 432323568. Its totient is φ = 360087552.

The previous prime is 395390003. The next prime is 395390059. The reversal of 395390029 is 920093593.

It can be written as a sum of positive squares in 8 ways, for example, as 71318025 + 324072004 = 8445^2 + 18002^2 .

It is not a de Polignac number, because 395390029 - 2⁷ = 395389901 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 395389973 and 395390000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395390059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119769 + ... + 123025.

It is an arithmetic number, because the mean of its divisors is an integer number (27020223).

Almost surely, 2^395390029 is an apocalyptic number.

It is an amenable number.

395390029 is a deficient number, since it is larger than the sum of its proper divisors (36933539).

395390029 is a wasteful number, since it uses less digits than its factorization.

395390029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3504.

The product of its (nonzero) digits is 65610, while the sum is 40.

The square root of 395390029 is about 19884.4167377371. The cubic root of 395390029 is about 733.9648092229.

The spelling of 395390029 in words is "three hundred ninety-five million, three hundred ninety thousand, twenty-nine".