400504103 has 8 divisors (see below), whose sum is σ = 406976400. Its totient is φ = 394082560.

The previous prime is 400504033. The next prime is 400504109. The reversal of 400504103 is 301405004.

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 400504103 - 2⁸ = 400503847 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 (400504109) 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 7 ways as a sum of consecutive naturals, for example, 3383 + ... + 28503.

It is an arithmetic number, because the mean of its divisors is an integer number (50872050).

Almost surely, 2^400504103 is an apocalyptic number.

400504103 is a deficient number, since it is larger than the sum of its proper divisors (6472297).

400504103 is a wasteful number, since it uses less digits than its factorization.

400504103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25377.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 400504103 is about 20012.5986068776. The cubic root of 400504103 is about 737.1156916817.

Adding to 400504103 its reverse (301405004), we get a palindrome (701909107).

Subtracting from 400504103 its reverse (301405004), we obtain a palindrome (99099099).

The spelling of 400504103 in words is "four hundred million, five hundred four thousand, one hundred three".