219441340 has 24 divisors (see below), whose sum is σ = 463593312. Its totient is φ = 87249600.

The previous prime is 219441329. The next prime is 219441349. The reversal of 219441340 is 43144912.

It is a junction number, because it is equal to n+sod(n) for n = 219441299 and 219441308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219441349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29511 + ... + 36190.

It is an arithmetic number, because the mean of its divisors is an integer number (19316388).

Almost surely, 2^219441340 is an apocalyptic number.

219441340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

219441340 is an abundant number, since it is smaller than the sum of its proper divisors (244151972).

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

219441340 is a wasteful number, since it uses less digits than its factorization.

219441340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65877 (or 65875 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 219441340 is about 14813.5525786356. The cubic root of 219441340 is about 603.1696519511.

It can be divided in two parts, 2194 and 41340, that added together give a palindrome (43534).

The spelling of 219441340 in words is "two hundred nineteen million, four hundred forty-one thousand, three hundred forty".