400065363 has 18 divisors (see below), whose sum is σ = 590458284. Its totient is φ = 261022584.

The previous prime is 400065307. The next prime is 400065409. The reversal of 400065363 is 363560004.

400065363 is a `hidden beast` number, since 4 + 0 + 0 + 0 + 653 + 6 + 3 = 666.

It is not a de Polignac number, because 400065363 - 2⁶ = 400065299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400065763) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 9820 + ... + 29942.

It is an arithmetic number, because the mean of its divisors is an integer number (32803238).

Almost surely, 2^400065363 is an apocalyptic number.

400065363 is a deficient number, since it is larger than the sum of its proper divisors (190392921).

400065363 is a wasteful number, since it uses less digits than its factorization.

400065363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20223 (or 20173 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 400065363 is about 20001.6340082504. The cubic root of 400065363 is about 736.8464307674.

It can be divided in two parts, 40006 and 5363, that added together give a square (45369 = 213²).

The spelling of 400065363 in words is "four hundred million, sixty-five thousand, three hundred sixty-three".