4219666398 has 48 divisors (see below), whose sum is σ = 9257049360. Its totient is φ = 1388990592.

The previous prime is 4219666397. The next prime is 4219666427. The reversal of 4219666398 is 8936669124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4219666397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2054340 + ... + 2056392.

It is an arithmetic number, because the mean of its divisors is an integer number (192855195).

Almost surely, 2^4219666398 is an apocalyptic number.

4219666398 is an abundant number, since it is smaller than the sum of its proper divisors (5037382962).

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

4219666398 is a wasteful number, since it uses less digits than its factorization.

4219666398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3433 (or 3430 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 4219666398 is about 64958.9593358761. The cubic root of 4219666398 is about 1615.9430057731.

The spelling of 4219666398 in words is "four billion, two hundred nineteen million, six hundred sixty-six thousand, three hundred ninety-eight".