400493305 has 8 divisors (see below), whose sum is σ = 505886400. Its totient is φ = 303531696.

The previous prime is 400493299. The next prime is 400493311. The reversal of 400493305 is 503394004.

It is an interprime number because it is at equal distance from previous prime (400493299) and next prime (400493311).

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 400493305 - 2¹⁵ = 400460537 is a prime.

It is an unprimeable number.

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, 2107765 + ... + 2107954.

It is an arithmetic number, because the mean of its divisors is an integer number (63235800).

Almost surely, 2^400493305 is an apocalyptic number.

It is an amenable number.

400493305 is a deficient number, since it is larger than the sum of its proper divisors (105393095).

400493305 is a wasteful number, since it uses less digits than its factorization.

400493305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4215743.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 400493305 is about 20012.3288250019. The cubic root of 400493305 is about 737.1090671580.

The spelling of 400493305 in words is "four hundred million, four hundred ninety-three thousand, three hundred five".