395425261 has 16 divisors (see below), whose sum is σ = 495083520. Its totient is φ = 306820080.

The previous prime is 395425259. The next prime is 395425267. The reversal of 395425261 is 162524593.

It is not a de Polignac number, because 395425261 - 2¹ = 395425259 is a prime.

It is a super-2 number, since 2×395425261² = 312722274073836242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 395425261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395425267) 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, 7660 + ... + 29146.

It is an arithmetic number, because the mean of its divisors is an integer number (30942720).

Almost surely, 2^395425261 is an apocalyptic number.

It is an amenable number.

395425261 is a deficient number, since it is larger than the sum of its proper divisors (99658259).

395425261 is a wasteful number, since it uses less digits than its factorization.

395425261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21744.

The product of its digits is 64800, while the sum is 37.

The square root of 395425261 is about 19885.3026378781. The cubic root of 395425261 is about 733.9866090309.

The spelling of 395425261 in words is "three hundred ninety-five million, four hundred twenty-five thousand, two hundred sixty-one".