2219064397 has 16 divisors (see below), whose sum is σ = 2549836800. Its totient is φ = 1909934640.

The previous prime is 2219064391. The next prime is 2219064431. The reversal of 2219064397 is 7934609122.

It is a cyclic number.

It is not a de Polignac number, because 2219064397 - 2³ = 2219064389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219064391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 509254 + ... + 513592.

It is an arithmetic number, because the mean of its divisors is an integer number (159364800).

Almost surely, 2^2219064397 is an apocalyptic number.

It is an amenable number.

2219064397 is a deficient number, since it is larger than the sum of its proper divisors (330772403).

2219064397 is a wasteful number, since it uses less digits than its factorization.

2219064397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6816.

The product of its (nonzero) digits is 163296, while the sum is 43.

The square root of 2219064397 is about 47106.9463773656. The cubic root of 2219064397 is about 1304.3374639805.

The spelling of 2219064397 in words is "two billion, two hundred nineteen million, sixty-four thousand, three hundred ninety-seven".