395690143 has 8 divisors (see below), whose sum is σ = 416934000. Its totient is φ = 374488128.

The previous prime is 395690131. The next prime is 395690177. The reversal of 395690143 is 341096593.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-395690143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 395690096 and 395690105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395691143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10005 + ... + 29857.

It is an arithmetic number, because the mean of its divisors is an integer number (52116750).

Almost surely, 2^395690143 is an apocalyptic number.

395690143 is a deficient number, since it is larger than the sum of its proper divisors (21243857).

395690143 is a wasteful number, since it uses less digits than its factorization.

395690143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20921.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 395690143 is about 19891.9617685134. The cubic root of 395690143 is about 734.1504633792.

The spelling of 395690143 in words is "three hundred ninety-five million, six hundred ninety thousand, one hundred forty-three".