400314505 has 4 divisors (see below), whose sum is σ = 480377412. Its totient is φ = 320251600.

The previous prime is 400314503. The next prime is 400314511. The reversal of 400314505 is 505413004.

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 286828096 + 113486409 = 16936^2 + 10653^2 .

It is not a de Polignac number, because 400314505 - 2¹ = 400314503 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400314503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40031446 + ... + 40031455.

It is an arithmetic number, because the mean of its divisors is an integer number (120094353).

Almost surely, 2^400314505 is an apocalyptic number.

It is an amenable number.

400314505 is a deficient number, since it is larger than the sum of its proper divisors (80062907).

400314505 is an equidigital number, since it uses as much as digits as its factorization.

400314505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80062906.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 400314505 is about 20007.8610800855. The cubic root of 400314505 is about 736.9993568601. Note that the first 3 decimals are identical.

Adding to 400314505 its reverse (505413004), we get a palindrome (905727509).

The spelling of 400314505 in words is "four hundred million, three hundred fourteen thousand, five hundred five".