395028231 has 16 divisors (see below), whose sum is σ = 570984960. Its totient is φ = 241480800.

The previous prime is 395028217. The next prime is 395028233. The reversal of 395028231 is 132820593.

It is not a de Polignac number, because 395028231 - 2⁵ = 395028199 is a prime.

It is a super-2 number, since 2×395028231² = 312094606573978722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 395028192 and 395028201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395028233) 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, 27651 + ... + 39428.

It is an arithmetic number, because the mean of its divisors is an integer number (35686560).

Almost surely, 2^395028231 is an apocalyptic number.

395028231 is a deficient number, since it is larger than the sum of its proper divisors (175956729).

395028231 is a wasteful number, since it uses less digits than its factorization.

395028231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67246.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 395028231 is about 19875.3171295454. The cubic root of 395028231 is about 733.7408716615.

The spelling of 395028231 in words is "three hundred ninety-five million, twenty-eight thousand, two hundred thirty-one".