223400040140 has 96 divisors (see below), whose sum is σ = 493669028160. Its totient is φ = 84796185600.

The previous prime is 223400040139. The next prime is 223400040173. The reversal of 223400040140 is 41040004322.

It is a super-2 number, since 2×223400040140² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78577559 + ... + 78580401.

It is an arithmetic number, because the mean of its divisors is an integer number (5142385710).

Almost surely, 2^223400040140 is an apocalyptic number.

223400040140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223400040140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (246834514080).

223400040140 is an abundant number, since it is smaller than the sum of its proper divisors (270268988020).

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

223400040140 is a wasteful number, since it uses less digits than its factorization.

223400040140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5163 (or 5161 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 223400040140 its reverse (41040004322), we get a palindrome (264440044462).

The spelling of 223400040140 in words is "two hundred twenty-three billion, four hundred million, forty thousand, one hundred forty".