20010395 has 12 divisors (see below), whose sum is σ = 24378336. Its totient is φ = 15768000.

The previous prime is 20010373. The next prime is 20010409. The reversal of 20010395 is 59301002.

It is not a de Polignac number, because 20010395 - 2¹⁰ = 20009371 is a prime.

It is a Duffinian number.

20010395 is a modest number, since divided by 10395 gives 20 as remainder.

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 11 ways as a sum of consecutive naturals, for example, 26270 + ... + 27020.

It is an arithmetic number, because the mean of its divisors is an integer number (2031528).

Almost surely, 2^20010395 is an apocalyptic number.

20010395 is a deficient number, since it is larger than the sum of its proper divisors (4367941).

20010395 is an frugal number, since it uses more digits than its factorization.

20010395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 902 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 20010395 is about 4473.2980003572. The cubic root of 20010395 is about 271.4887807996.

Adding to 20010395 its reverse (59301002), we get a palindrome (79311397).

The spelling of 20010395 in words is "twenty million, ten thousand, three hundred ninety-five".