401712305 has 8 divisors (see below), whose sum is σ = 484719144. Its totient is φ = 319593600.

The previous prime is 401712287. The next prime is 401712313. The reversal of 401712305 is 503217104.

It can be written as a sum of positive squares in 4 ways, for example, as 22202944 + 379509361 = 4712^2 + 19481^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-401712305 is a prime.

It is a super-2 number, since 2×401712305² = 322745551976826050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221036 + ... + 222845.

It is an arithmetic number, because the mean of its divisors is an integer number (60589893).

Almost surely, 2^401712305 is an apocalyptic number.

It is an amenable number.

401712305 is a deficient number, since it is larger than the sum of its proper divisors (83006839).

401712305 is a wasteful number, since it uses less digits than its factorization.

401712305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444067.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 401712305 is about 20042.7619104753. The cubic root of 401712305 is about 737.8561673314.

Adding to 401712305 its reverse (503217104), we get a palindrome (904929409).

The spelling of 401712305 in words is "four hundred one million, seven hundred twelve thousand, three hundred five".