223400023242 has 64 divisors (see below), whose sum is σ = 500851634688. Its totient is φ = 65833128000.

The previous prime is 223400023241. The next prime is 223400023267. The reversal of 223400023242 is 242320004322.

It is a happy number.

It is a super-2 number, since 2×223400023242² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (223400023241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4888117 + ... + 4933607.

It is an arithmetic number, because the mean of its divisors is an integer number (7825806792).

Almost surely, 2^223400023242 is an apocalyptic number.

223400023242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 223400023242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250425817344).

223400023242 is an abundant number, since it is smaller than the sum of its proper divisors (277451611446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223400023242 is a wasteful number, since it uses less digits than its factorization.

223400023242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47555.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 223400023242 its reverse (242320004322), we get a palindrome (465720027564).

The spelling of 223400023242 in words is "two hundred twenty-three billion, four hundred million, twenty-three thousand, two hundred forty-two".