400315207 has 8 divisors (see below), whose sum is σ = 417951360. Its totient is φ = 382698360.

The previous prime is 400315187. The next prime is 400315213. The reversal of 400315207 is 702513004.

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

It is a cyclic number.

It is not a de Polignac number, because 400315207 - 2¹⁵ = 400282439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400315297) 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 in 7 ways as a sum of consecutive naturals, for example, 51844 + ... + 59062.

It is an arithmetic number, because the mean of its divisors is an integer number (52243920).

Almost surely, 2^400315207 is an apocalyptic number.

400315207 is a deficient number, since it is larger than the sum of its proper divisors (17636153).

400315207 is a wasteful number, since it uses less digits than its factorization.

400315207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9653.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 400315207 is about 20007.8786231824. The cubic root of 400315207 is about 736.9997876658. Note that the first 3 decimals are identical.

The spelling of 400315207 in words is "four hundred million, three hundred fifteen thousand, two hundred seven".