395239001 has 12 divisors (see below), whose sum is σ = 420694380. Its totient is φ = 371247360.

The previous prime is 395238989. The next prime is 395239043. The reversal of 395239001 is 100932593.

It can be written as a sum of positive squares in 6 ways, for example, as 26790976 + 368448025 = 5176^2 + 19195^2 .

It is not a de Polignac number, because 395239001 - 2¹⁰ = 395237977 is a prime.

It is a super-2 number, since 2×395239001² = 312427735822956002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395236001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 189995 + ... + 192063.

It is an arithmetic number, because the mean of its divisors is an integer number (35057865).

Almost surely, 2^395239001 is an apocalyptic number.

It is an amenable number.

395239001 is a deficient number, since it is larger than the sum of its proper divisors (25455379).

395239001 is a wasteful number, since it uses less digits than its factorization.

395239001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764 (or 2747 counting only the distinct ones).

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 395239001 is about 19880.6187277962. The cubic root of 395239001 is about 733.8713459370.

The spelling of 395239001 in words is "three hundred ninety-five million, two hundred thirty-nine thousand, one".