223240034421 has 16 divisors (see below), whose sum is σ = 330733252800. Its totient is φ = 148823415504.

The previous prime is 223240034417. The next prime is 223240034441. The reversal of 223240034421 is 124430042322.

223240034421 is a `hidden beast` number, since 2 + 232 + 4 + 0 + 0 + 3 + 4 + 421 = 666.

It is not a de Polignac number, because 223240034421 - 2² = 223240034417 is a prime.

It is a super-3 number, since 3×223240034421³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223240034441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2359495 + ... + 2452283.

It is an arithmetic number, because the mean of its divisors is an integer number (20670828300).

Almost surely, 2^223240034421 is an apocalyptic number.

It is an amenable number.

223240034421 is a deficient number, since it is larger than the sum of its proper divisors (107493218379).

223240034421 is an equidigital number, since it uses as much as digits as its factorization.

223240034421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181905 (or 181899 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 223240034421 its reverse (124430042322), we get a palindrome (347670076743).

The spelling of 223240034421 in words is "two hundred twenty-three billion, two hundred forty million, thirty-four thousand, four hundred twenty-one".