395402623 has 16 divisors (see below), whose sum is σ = 497502720. Its totient is φ = 305272800.

The previous prime is 395402593. The next prime is 395402633. The reversal of 395402623 is 326204593.

It is a de Polignac number, because none of the positive numbers 2^k-395402623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (395402633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15163 + ... + 31948.

It is an arithmetic number, because the mean of its divisors is an integer number (31093920).

Almost surely, 2^395402623 is an apocalyptic number.

395402623 is a deficient number, since it is larger than the sum of its proper divisors (102100097).

395402623 is a wasteful number, since it uses less digits than its factorization.

395402623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47238.

The product of its (nonzero) digits is 38880, while the sum is 34.

The square root of 395402623 is about 19884.7334153616. The cubic root of 395402623 is about 733.9726019120.

The spelling of 395402623 in words is "three hundred ninety-five million, four hundred two thousand, six hundred twenty-three".