400317284 has 6 divisors (see below), whose sum is σ = 700555254. Its totient is φ = 200158640.

The previous prime is 400317271. The next prime is 400317287. The reversal of 400317284 is 482713004.

It can be written as a sum of positive squares in only one way, i.e., 328406884 + 71910400 = 18122^2 + 8480^2 .

It is not an unprimeable number, because it can be changed into a prime (400317287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50039657 + ... + 50039664.

It is an arithmetic number, because the mean of its divisors is an integer number (116759209).

Almost surely, 2^400317284 is an apocalyptic number.

It is an amenable number.

400317284 is a deficient number, since it is larger than the sum of its proper divisors (300237970).

400317284 is a wasteful number, since it uses less digits than its factorization.

400317284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100079325 (or 100079323 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 400317284 is about 20007.9305276683. The cubic root of 400317284 is about 737.0010622830.

The spelling of 400317284 in words is "four hundred million, three hundred seventeen thousand, two hundred eighty-four".