395287490 has 32 divisors (see below), whose sum is σ = 770575680. Its totient is φ = 145128384.

The previous prime is 395287489. The next prime is 395287507. The reversal of 395287490 is 94782593.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14777 + ... + 31763.

It is an arithmetic number, because the mean of its divisors is an integer number (24080490).

Almost surely, 2^395287490 is an apocalyptic number.

395287490 is a deficient number, since it is larger than the sum of its proper divisors (375288190).

395287490 is a wasteful number, since it uses less digits than its factorization.

395287490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17186.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 395287490 is about 19881.8381946942. The cubic root of 395287490 is about 733.9013558234.

The spelling of 395287490 in words is "three hundred ninety-five million, two hundred eighty-seven thousand, four hundred ninety".