400421103 has 8 divisors (see below), whose sum is σ = 534009600. Its totient is φ = 266890008.

The previous prime is 400421089. The next prime is 400421113. The reversal of 400421103 is 301124004.

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

It is not a de Polignac number, because 400421103 - 2⁹ = 400420591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400421113) 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, 6088 + ... + 28946.

It is an arithmetic number, because the mean of its divisors is an integer number (66751200).

Almost surely, 2^400421103 is an apocalyptic number.

400421103 is a deficient number, since it is larger than the sum of its proper divisors (133588497).

400421103 is a wasteful number, since it uses less digits than its factorization.

400421103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28701.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 400421103 is about 20010.5248057116. The cubic root of 400421103 is about 737.0647685003.

Adding to 400421103 its reverse (301124004), we get a palindrome (701545107).

The spelling of 400421103 in words is "four hundred million, four hundred twenty-one thousand, one hundred three".