219228354 has 24 divisors (see below), whose sum is σ = 476377200. Its totient is φ = 72863448.

The previous prime is 219228349. The next prime is 219228377. The reversal of 219228354 is 453822912.

It is a happy number.

It is a super-2 number, since 2×219228354² = 96122142395098632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11304 + ... + 23795.

It is an arithmetic number, because the mean of its divisors is an integer number (19849050).

Almost surely, 2^219228354 is an apocalyptic number.

219228354 is an abundant number, since it is smaller than the sum of its proper divisors (257148846).

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

219228354 is a wasteful number, since it uses less digits than its factorization.

219228354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35454 (or 35451 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 219228354 is about 14806.3619434350. The cubic root of 219228354 is about 602.9744467443.

It can be divided in two parts, 21922 and 8354, that added together give a square (30276 = 174²).

The spelling of 219228354 in words is "two hundred nineteen million, two hundred twenty-eight thousand, three hundred fifty-four".