400125305 has 8 divisors (see below), whose sum is σ = 480857472. Its totient is φ = 319628848.

The previous prime is 400125301. The next prime is 400125343. The reversal of 400125305 is 503521004.

400125305 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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 400125305 - 2² = 400125301 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400125301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55169 + ... + 61998.

It is an arithmetic number, because the mean of its divisors is an integer number (60107184).

Almost surely, 2^400125305 is an apocalyptic number.

It is an amenable number.

400125305 is a deficient number, since it is larger than the sum of its proper divisors (80732167).

400125305 is a wasteful number, since it uses less digits than its factorization.

400125305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117855.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 400125305 is about 20003.1323797049. The cubic root of 400125305 is about 736.8832296234.

Adding to 400125305 its reverse (503521004), we get a palindrome (903646309).

The spelling of 400125305 in words is "four hundred million, one hundred twenty-five thousand, three hundred five".