2219465 has 4 divisors (see below), whose sum is σ = 2663364. Its totient is φ = 1775568.

The previous prime is 2219461. The next prime is 2219467. The reversal of 2219465 is 5649122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 466489 + 1752976 = 683^2 + 1324^2 .

It is a cyclic number.

It is not a de Polignac number, because 2219465 - 2² = 2219461 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2219461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221942 + ... + 221951.

It is an arithmetic number, because the mean of its divisors is an integer number (665841).

2^2219465 is an apocalyptic number.

It is an amenable number.

2219465 is a deficient number, since it is larger than the sum of its proper divisors (443899).

2219465 is an equidigital number, since it uses as much as digits as its factorization.

2219465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443898.

The product of its digits is 4320, while the sum is 29.

The square root of 2219465 is about 1489.7868975125. The cubic root of 2219465 is about 130.4415949019.

The spelling of 2219465 in words is "two million, two hundred nineteen thousand, four hundred sixty-five".