11400233 has 8 divisors (see below), whose sum is σ = 12352200. Its totient is φ = 10521264.

The previous prime is 11400223. The next prime is 11400239. The reversal of 11400233 is 33200411.

It can be written as a sum of positive squares in 4 ways, for example, as 1993744 + 9406489 = 1412^2 + 3067^2 .

It is not a de Polignac number, because 11400233 - 2⁸ = 11399977 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11400239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398 + ... + 4791.

It is an arithmetic number, because the mean of its divisors is an integer number (1544025).

Almost surely, 2^11400233 is an apocalyptic number.

11400233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11400233 is a deficient number, since it is larger than the sum of its proper divisors (951967).

11400233 is an frugal number, since it uses more digits than its factorization.

11400233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5228 (or 5202 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 11400233 is about 3376.4231073727. The cubic root of 11400233 is about 225.0632447724.

Adding to 11400233 its reverse (33200411), we get a palindrome (44600644).

The spelling of 11400233 in words is "eleven million, four hundred thousand, two hundred thirty-three".