400234233 has 16 divisors (see below), whose sum is σ = 611502080. Its totient is φ = 228097296.

The previous prime is 400234223. The next prime is 400234267. The reversal of 400234233 is 332432004.

It is not a de Polignac number, because 400234233 - 2¹⁴ = 400217849 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (400234223) 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 15 ways as a sum of consecutive naturals, for example, 17185 + ... + 33102.

It is an arithmetic number, because the mean of its divisors is an integer number (38218880).

Almost surely, 2^400234233 is an apocalyptic number.

It is an amenable number.

400234233 is a deficient number, since it is larger than the sum of its proper divisors (211267847).

400234233 is a wasteful number, since it uses less digits than its factorization.

400234233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50676.

The product of its (nonzero) digits is 1728, while the sum is 21.

The square root of 400234233 is about 20005.8549679837. The cubic root of 400234233 is about 736.9500919560.

Adding to 400234233 its reverse (332432004), we get a palindrome (732666237).

The spelling of 400234233 in words is "four hundred million, two hundred thirty-four thousand, two hundred thirty-three".