400463863 has 8 divisors (see below), whose sum is σ = 403450416. Its totient is φ = 397488000.

The previous prime is 400463837. The next prime is 400463867. The reversal of 400463863 is 368364004.

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 400463863 - 2⁵ = 400463831 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 (400463867) 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, 82245 + ... + 86977.

It is an arithmetic number, because the mean of its divisors is an integer number (50431302).

Almost surely, 2^400463863 is an apocalyptic number.

400463863 is a deficient number, since it is larger than the sum of its proper divisors (2986553).

400463863 is a wasteful number, since it uses less digits than its factorization.

400463863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5345.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 400463863 is about 20011.5932149342. The cubic root of 400463863 is about 737.0910040204.

The spelling of 400463863 in words is "four hundred million, four hundred sixty-three thousand, eight hundred sixty-three".