219434340 has 24 divisors (see below), whose sum is σ = 614416320. Its totient is φ = 58515808.

The previous prime is 219434339. The next prime is 219434353. The reversal of 219434340 is 43434912.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 219434298 and 219434307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1828560 + ... + 1828679.

It is an arithmetic number, because the mean of its divisors is an integer number (25600680).

Almost surely, 2^219434340 is an apocalyptic number.

219434340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

219434340 is an abundant number, since it is smaller than the sum of its proper divisors (394981980).

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

219434340 is a wasteful number, since it uses less digits than its factorization.

219434340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3657251 (or 3657249 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 219434340 is about 14813.3163066209. The cubic root of 219434340 is about 603.1632383427.

The spelling of 219434340 in words is "two hundred nineteen million, four hundred thirty-four thousand, three hundred forty".