395530239 has 64 divisors (see below), whose sum is σ = 627701760. Its totient is φ = 219386880.

The previous prime is 395530237. The next prime is 395530243. The reversal of 395530239 is 932035593.

It is not a de Polignac number, because 395530239 - 2¹ = 395530237 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 395530197 and 395530206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395530231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1427769 + ... + 1428045.

It is an arithmetic number, because the mean of its divisors is an integer number (9807840).

Almost surely, 2^395530239 is an apocalyptic number.

395530239 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

395530239 is a deficient number, since it is larger than the sum of its proper divisors (232171521).

395530239 is a wasteful number, since it uses less digits than its factorization.

395530239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400.

The product of its (nonzero) digits is 109350, while the sum is 39.

The square root of 395530239 is about 19887.9420503983. The cubic root of 395530239 is about 734.0515565159.

The spelling of 395530239 in words is "three hundred ninety-five million, five hundred thirty thousand, two hundred thirty-nine".