401325605 has 8 divisors (see below), whose sum is σ = 483306264. Its totient is φ = 319916800.

The previous prime is 401325601. The next prime is 401325607. The reversal of 401325605 is 506523104.

It can be written as a sum of positive squares in 4 ways, for example, as 18653761 + 382671844 = 4319^2 + 19562^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 401325605 - 2² = 401325601 is a prime.

It is a super-2 number, since 2×401325605² = 322124482457232050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401325601) 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 7 ways as a sum of consecutive naturals, for example, 141416 + ... + 144225.

It is an arithmetic number, because the mean of its divisors is an integer number (60413283).

Almost surely, 2^401325605 is an apocalyptic number.

It is an amenable number.

401325605 is a deficient number, since it is larger than the sum of its proper divisors (81980659).

401325605 is a wasteful number, since it uses less digits than its factorization.

401325605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285927.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 401325605 is about 20033.1127137048. The cubic root of 401325605 is about 737.6193306860.

Adding to 401325605 its reverse (506523104), we get a palindrome (907848709).

The spelling of 401325605 in words is "four hundred one million, three hundred twenty-five thousand, six hundred five".