395420810 has 64 divisors (see below), whose sum is σ = 768144384. Its totient is φ = 146265600.

The previous prime is 395420803. The next prime is 395420821. The reversal of 395420810 is 18024593.

It is a super-2 number, since 2×395420810² = 312715233962112200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 673337 + ... + 673923.

It is an arithmetic number, because the mean of its divisors is an integer number (12002256).

Almost surely, 2^395420810 is an apocalyptic number.

395420810 is a deficient number, since it is larger than the sum of its proper divisors (372723574).

395420810 is a wasteful number, since it uses less digits than its factorization.

395420810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 395420810 is about 19885.1907207349. The cubic root of 395420810 is about 733.9838550451.

The spelling of 395420810 in words is "three hundred ninety-five million, four hundred twenty thousand, eight hundred ten".