223422665400 has 144 divisors (see below), whose sum is σ = 818539473960. Its totient is φ = 54163065600.

The previous prime is 223422665399. The next prime is 223422665419. The reversal of 223422665400 is 4566224322.

223422665400 is a `hidden beast` number, since 2 + 2 + 34 + 22 + 66 + 540 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5622187 + ... + 5661786.

Almost surely, 2^223422665400 is an apocalyptic number.

223422665400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223422665400 is an abundant number, since it is smaller than the sum of its proper divisors (595116808560).

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

223422665400 is a wasteful number, since it uses less digits than its factorization.

223422665400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11284006 (or 11283994 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 223422665400 its reverse (4566224322), we get a palindrome (227988889722).

The spelling of 223422665400 in words is "two hundred twenty-three billion, four hundred twenty-two million, six hundred sixty-five thousand, four hundred".