223421635434140 has 96 divisors (see below), whose sum is σ = 551236150906560. Its totient is φ = 74991233894400.

The previous prime is 223421635434139. The next prime is 223421635434167. The reversal of 223421635434140 is 41434536124322.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 223421635434091 and 223421635434100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60935750 + ... + 64498130.

It is an arithmetic number, because the mean of its divisors is an integer number (5742043238610).

Almost surely, 2^{223421635434140} is an apocalyptic number.

223421635434140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223421635434140 is an abundant number, since it is smaller than the sum of its proper divisors (327814515472420).

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

223421635434140 is a wasteful number, since it uses less digits than its factorization.

223421635434140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3584343 (or 3584341 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 44.

The spelling of 223421635434140 in words is "two hundred twenty-three trillion, four hundred twenty-one billion, six hundred thirty-five million, four hundred thirty-four thousand, one hundred forty".