400613103 has 24 divisors (see below), whose sum is σ = 658719360. Its totient is φ = 232238160.

The previous prime is 400613089. The next prime is 400613111. The reversal of 400613103 is 301316004.

400613103 is a `hidden beast` number, since 40 + 0 + 613 + 10 + 3 = 666.

It is not a de Polignac number, because 400613103 - 2¹⁸ = 400350959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400613113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85693 + ... + 90246.

It is an arithmetic number, because the mean of its divisors is an integer number (27446640).

Almost surely, 2^400613103 is an apocalyptic number.

400613103 is a deficient number, since it is larger than the sum of its proper divisors (258106257).

400613103 is a wasteful number, since it uses less digits than its factorization.

400613103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175979 (or 175976 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 400613103 is about 20015.3217061330. The cubic root of 400613103 is about 737.1825560176.

Adding to 400613103 its reverse (301316004), we get a palindrome (701929107).

The spelling of 400613103 in words is "four hundred million, six hundred thirteen thousand, one hundred three".