2219917456 has 15 divisors (see below), whose sum is σ = 4301455251. Its totient is φ = 1109864496.

The previous prime is 2219917417. The next prime is 2219917457. The reversal of 2219917456 is 6547199122.

The square root of 2219917456 is 47116.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×2219917456² = 9856067022907023872, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2219917457) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 182575 + ... + 194353.

Almost surely, 2^2219917456 is an apocalyptic number.

2219917456 is the 47116-th square number.

It is an amenable number.

2219917456 is a deficient number, since it is larger than the sum of its proper divisors (2081537795).

2219917456 is an frugal number, since it uses more digits than its factorization.

2219917456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23566 (or 11781 counting only the distinct ones).

The product of its digits is 272160, while the sum is 46.

The cubic root of 2219917456 is about 1304.5045815977.

The spelling of 2219917456 in words is "two billion, two hundred nineteen million, nine hundred seventeen thousand, four hundred fifty-six".