2219416388 has 36 divisors (see below), whose sum is σ = 4548480300. Its totient is φ = 944782272.

The previous prime is 2219416373. The next prime is 2219416421. The reversal of 2219416388 is 8836149122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 574465024 + 1644951364 = 23968^2 + 40558^2 .

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, 8795 + ... + 67202.

It is an arithmetic number, because the mean of its divisors is an integer number (126346675).

Almost surely, 2^2219416388 is an apocalyptic number.

2219416388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2219416388 is an abundant number, since it is smaller than the sum of its proper divisors (2329063912).

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

2219416388 is a wasteful number, since it uses less digits than its factorization.

2219416388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76164 (or 76155 counting only the distinct ones).

The product of its digits is 165888, while the sum is 44.

The square root of 2219416388 is about 47110.6823130381. The cubic root of 2219416388 is about 1304.4064255927.

The spelling of 2219416388 in words is "two billion, two hundred nineteen million, four hundred sixteen thousand, three hundred eighty-eight".