2400223 has 4 divisors (see below), whose sum is σ = 2743120. Its totient is φ = 2057328.

The previous prime is 2400221. The next prime is 2400253. The reversal of 2400223 is 3220042.

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

It is not a de Polignac number, because 2400223 - 2¹ = 2400221 is a prime.

It is a super-2 number, since 2×2400223² = 11522140899458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2400221) 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, 171438 + ... + 171451.

It is an arithmetic number, because the mean of its divisors is an integer number (685780).

2^2400223 is an apocalyptic number.

2400223 is a deficient number, since it is larger than the sum of its proper divisors (342897).

2400223 is an equidigital number, since it uses as much as digits as its factorization.

2400223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342896.

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 2400223 is about 1549.2653097517. The cubic root of 2400223 is about 133.8907366532.

Adding to 2400223 its reverse (3220042), we get a palindrome (5620265).

It can be divided in two parts, 24002 and 23, that added together give a square (24025 = 155²).

The spelling of 2400223 in words is "two million, four hundred thousand, two hundred twenty-three".