400315115 has 8 divisors (see below), whose sum is σ = 501264288. Its totient is φ = 306328000.

The previous prime is 400315081. The next prime is 400315117. The reversal of 400315115 is 511513004.

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

It is not a de Polignac number, because 400315115 - 2⁶ = 400315051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400315117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1740386 + ... + 1740615.

It is an arithmetic number, because the mean of its divisors is an integer number (62658036).

Almost surely, 2^400315115 is an apocalyptic number.

400315115 is a deficient number, since it is larger than the sum of its proper divisors (100949173).

400315115 is a wasteful number, since it uses less digits than its factorization.

400315115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481029.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 400315115 is about 20007.8763240880. The cubic root of 400315115 is about 736.9997312069. Note that the first 3 decimals are identical.

Adding to 400315115 its reverse (511513004), we get a palindrome (911828119).

It can be divided in two parts, 400315 and 115, that multiplied together give a square (46036225 = 6785²).

The spelling of 400315115 in words is "four hundred million, three hundred fifteen thousand, one hundred fifteen".