424140223 has 4 divisors (see below), whose sum is σ = 456766408. Its totient is φ = 391514040.

The previous prime is 424140221. The next prime is 424140229. The reversal of 424140223 is 322041424.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 424140223 - 2¹ = 424140221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 424140194 and 424140203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424140221) 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, 16313073 + ... + 16313098.

It is an arithmetic number, because the mean of its divisors is an integer number (114191602).

Almost surely, 2^424140223 is an apocalyptic number.

424140223 is a deficient number, since it is larger than the sum of its proper divisors (32626185).

424140223 is a wasteful number, since it uses less digits than its factorization.

424140223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32626184.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 424140223 is about 20594.6649159436. The cubic root of 424140223 is about 751.3399589580.

Adding to 424140223 its reverse (322041424), we get a palindrome (746181647).

The spelling of 424140223 in words is "four hundred twenty-four million, one hundred forty thousand, two hundred twenty-three".