400341563 has 4 divisors (see below), whose sum is σ = 405825768. Its totient is φ = 394857360.

The previous prime is 400341559. The next prime is 400341577. The reversal of 400341563 is 365143004.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 400341563 - 2² = 400341559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400341593) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2741993 + ... + 2742138.

It is an arithmetic number, because the mean of its divisors is an integer number (101456442).

Almost surely, 2^400341563 is an apocalyptic number.

400341563 is a deficient number, since it is larger than the sum of its proper divisors (5484205).

400341563 is an equidigital number, since it uses as much as digits as its factorization.

400341563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5484204.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 400341563 is about 20008.5372528828. The cubic root of 400341563 is about 737.0159615373.

Adding to 400341563 its reverse (365143004), we get a palindrome (765484567).

The spelling of 400341563 in words is "four hundred million, three hundred forty-one thousand, five hundred sixty-three".