400233133 has 4 divisors (see below), whose sum is σ = 400546368. Its totient is φ = 399919900.

The previous prime is 400233131. The next prime is 400233203. The reversal of 400233133 is 331332004.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 400233133 - 2¹ = 400233131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 400233133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400233131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154693 + ... + 157258.

It is an arithmetic number, because the mean of its divisors is an integer number (100136592).

Almost surely, 2^400233133 is an apocalyptic number.

It is an amenable number.

400233133 is a deficient number, since it is larger than the sum of its proper divisors (313235).

400233133 is a wasteful number, since it uses less digits than its factorization.

400233133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313234.

The product of its (nonzero) digits is 648, while the sum is 19.

The square root of 400233133 is about 20005.8274760131. The cubic root of 400233133 is about 736.9494168131.

Adding to 400233133 its reverse (331332004), we get a palindrome (731565137).

The spelling of 400233133 in words is "four hundred million, two hundred thirty-three thousand, one hundred thirty-three".