395090491 has 16 divisors (see below), whose sum is σ = 412732800. Its totient is φ = 377961408.

The previous prime is 395090483. The next prime is 395090497. The reversal of 395090491 is 194090593.

It is a cyclic number.

It is not a de Polignac number, because 395090491 - 2³ = 395090483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (395090497) 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, 351256 + ... + 352378.

It is an arithmetic number, because the mean of its divisors is an integer number (25795800).

Almost surely, 2^395090491 is an apocalyptic number.

395090491 is a deficient number, since it is larger than the sum of its proper divisors (17642309).

395090491 is a wasteful number, since it uses less digits than its factorization.

395090491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1338.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 395090491 is about 19876.8833321525. The cubic root of 395090491 is about 733.7794176888.

The spelling of 395090491 in words is "three hundred ninety-five million, ninety thousand, four hundred ninety-one".