400107424 has 12 divisors (see below), whose sum is σ = 787711554. Its totient is φ = 200053696.

The previous prime is 400107413. The next prime is 400107431. The reversal of 400107424 is 424701004.

It can be written as a sum of positive squares in only one way, i.e., 310464400 + 89643024 = 17620^2 + 9468^2 .

It is a junction number, because it is equal to n+sod(n) for n = 400107395 and 400107404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6251647 + ... + 6251710.

Almost surely, 2^400107424 is an apocalyptic number.

It is an amenable number.

400107424 is a deficient number, since it is larger than the sum of its proper divisors (387604130).

400107424 is a wasteful number, since it uses less digits than its factorization.

400107424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12503367 (or 12503359 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 400107424 is about 20002.6854197130. The cubic root of 400107424 is about 736.8722527243.

Adding to 400107424 its reverse (424701004), we get a palindrome (824808428).

The spelling of 400107424 in words is "four hundred million, one hundred seven thousand, four hundred twenty-four".