400463 has 8 divisors (see below), whose sum is σ = 481920. Its totient is φ = 325080.

The previous prime is 400457. The next prime is 400471. The reversal of 400463 is 364004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 400463 - 2⁸ = 400207 is a prime.

It is a super-2 number, since 2×400463² = 320741228738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400963) 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, 1373 + ... + 1638.

It is an arithmetic number, because the mean of its divisors is an integer number (60240).

2⁴⁰⁰⁴⁶³ is an apocalyptic number.

400463 is a deficient number, since it is larger than the sum of its proper divisors (81457).

400463 is a wasteful number, since it uses less digits than its factorization.

400463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3037.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 400463 is about 632.8214598131. The cubic root of 400463 is about 73.7090474543.

Adding to 400463 its reverse (364004), we get a palindrome (764467).

It can be divided in two parts, 4004 and 63, that multiplied together give a palindrome (252252).

The spelling of 400463 in words is "four hundred thousand, four hundred sixty-three".