395122401 has 16 divisors (see below), whose sum is σ = 586355200. Its totient is φ = 262970064.

The previous prime is 395122397. The next prime is 395122463. The reversal of 395122401 is 104221593.

It is not a de Polignac number, because 395122401 - 2² = 395122397 is a prime.

It is a super-2 number, since 2×395122401² = 312243423544009602, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (395122901) 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, 4335 + ... + 28443.

It is an arithmetic number, because the mean of its divisors is an integer number (36647200).

Almost surely, 2^395122401 is an apocalyptic number.

It is an amenable number.

395122401 is a deficient number, since it is larger than the sum of its proper divisors (191232799).

395122401 is a wasteful number, since it uses less digits than its factorization.

395122401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24725 (or 24719 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 395122401 is about 19877.6860071790. The cubic root of 395122401 is about 733.7991720416.

Adding to 395122401 its reverse (104221593), we get a palindrome (499343994).

The spelling of 395122401 in words is "three hundred ninety-five million, one hundred twenty-two thousand, four hundred one".