395646069 has 96 divisors (see below), whose sum is σ = 704968704. Its totient is φ = 192741120.

The previous prime is 395646037. The next prime is 395646071. The reversal of 395646069 is 960646593.

It is a happy number.

It is not a de Polignac number, because 395646069 - 2⁵ = 395646037 is a prime.

It is a super-2 number, since 2×395646069² = 313071623830305522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395646019) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3020134 + ... + 3020264.

It is an arithmetic number, because the mean of its divisors is an integer number (7343424).

Almost surely, 2^395646069 is an apocalyptic number.

395646069 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

395646069 is a deficient number, since it is larger than the sum of its proper divisors (309322635).

395646069 is a wasteful number, since it uses less digits than its factorization.

395646069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 1049760, while the sum is 48.

The square root of 395646069 is about 19890.8539032390. The cubic root of 395646069 is about 734.1232045510.

The spelling of 395646069 in words is "three hundred ninety-five million, six hundred forty-six thousand, sixty-nine".