400460420663 has 8 divisors (see below), whose sum is σ = 407268518400. Its totient is φ = 393653010808.

The previous prime is 400460420639. The next prime is 400460420699. The reversal of 400460420663 is 366024064004.

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 400460420663 - 2²⁰ = 400459372087 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 (400460420603) 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, 1078928 + ... + 1401786.

It is an arithmetic number, because the mean of its divisors is an integer number (50908564800).

Almost surely, 2^400460420663 is an apocalyptic number.

400460420663 is a deficient number, since it is larger than the sum of its proper divisors (6808097737).

400460420663 is a wasteful number, since it uses less digits than its factorization.

400460420663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343941.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 400460420663 its reverse (366024064004), we get a palindrome (766484484667).

The spelling of 400460420663 in words is "four hundred billion, four hundred sixty million, four hundred twenty thousand, six hundred sixty-three".