10400223 has 4 divisors (see below), whose sum is σ = 13866968. Its totient is φ = 6933480.

The previous prime is 10400189. The next prime is 10400231. The reversal of 10400223 is 32200401.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 10400223 - 2¹⁷ = 10269151 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10400199 and 10400208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10400263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1733368 + ... + 1733373.

It is an arithmetic number, because the mean of its divisors is an integer number (3466742).

Almost surely, 2^10400223 is an apocalyptic number.

10400223 is a deficient number, since it is larger than the sum of its proper divisors (3466745).

10400223 is an equidigital number, since it uses as much as digits as its factorization.

10400223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3466744.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 10400223 is about 3224.9376738163. The cubic root of 10400223 is about 218.2801367332.

Adding to 10400223 its reverse (32200401), we get a palindrome (42600624).

The spelling of 10400223 in words is "ten million, four hundred thousand, two hundred twenty-three".