400116033 has 6 divisors (see below), whose sum is σ = 577945394. Its totient is φ = 266744016.

The previous prime is 400115959. The next prime is 400116043. The reversal of 400116033 is 330611004.

It can be written as a sum of positive squares in only one way, i.e., 387774864 + 12341169 = 19692^2 + 3513^2 .

It is not a de Polignac number, because 400116033 - 2²⁴ = 383338817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 400115997 and 400116015.

It is not an unprimeable number, because it can be changed into a prime (400116043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22228660 + ... + 22228677.

Almost surely, 2^400116033 is an apocalyptic number.

It is an amenable number.

400116033 is a deficient number, since it is larger than the sum of its proper divisors (177829361).

400116033 is a wasteful number, since it uses less digits than its factorization.

400116033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44457343 (or 44457340 counting only the distinct ones).

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

The square root of 400116033 is about 20002.9006146609. The cubic root of 400116033 is about 736.8775377114.

Adding to 400116033 its reverse (330611004), we get a palindrome (730727037).

The spelling of 400116033 in words is "four hundred million, one hundred sixteen thousand, thirty-three".