2219554 has 16 divisors (see below), whose sum is σ = 3566808. Its totient is φ = 1032192.

The previous prime is 2219551. The next prime is 2219557. The reversal of 2219554 is 4559122.

It is an interprime number because it is at equal distance from previous prime (2219551) and next prime (2219557).

It can be written as a sum of positive squares in 4 ways, for example, as 1946025 + 273529 = 1395^2 + 523^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2219551) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2962 + ... + 3634.

2^2219554 is an apocalyptic number.

2219554 is a deficient number, since it is larger than the sum of its proper divisors (1347254).

2219554 is a wasteful number, since it uses less digits than its factorization.

2219554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789.

The product of its digits is 3600, while the sum is 28.

The square root of 2219554 is about 1489.8167672570. The cubic root of 2219554 is about 130.4433384372.

The spelling of 2219554 in words is "two million, two hundred nineteen thousand, five hundred fifty-four".