401267305 has 4 divisors (see below), whose sum is σ = 481520772. Its totient is φ = 321013840.

The previous prime is 401267299. The next prime is 401267359. The reversal of 401267305 is 503762104.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 158281561 + 242985744 = 12581^2 + 15588^2 .

It is not a de Polignac number, because 401267305 - 2¹³ = 401259113 is a prime.

It is a super-2 number, since 2×401267305² = 322030900123926050, 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 3 ways as a sum of consecutive naturals, for example, 40126726 + ... + 40126735.

It is an arithmetic number, because the mean of its divisors is an integer number (120380193).

Almost surely, 2^401267305 is an apocalyptic number.

It is an amenable number.

401267305 is a deficient number, since it is larger than the sum of its proper divisors (80253467).

401267305 is an equidigital number, since it uses as much as digits as its factorization.

401267305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80253466.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 401267305 is about 20031.6575699566. The cubic root of 401267305 is about 737.5836113191.

It can be divided in two parts, 4012 and 67305, that added together give a palindrome (71317).

The spelling of 401267305 in words is "four hundred one million, two hundred sixty-seven thousand, three hundred five".