2219845544 has 32 divisors (see below), whose sum is σ = 5007172800. Its totient is φ = 901290240.

The previous prime is 2219845519. The next prime is 2219845549. The reversal of 2219845544 is 4455489122.

It is a junction number, because it is equal to n+sod(n) for n = 2219845495 and 2219845504.

It is not an unprimeable number, because it can be changed into a prime (2219845549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1042097 + ... + 1044224.

It is an arithmetic number, because the mean of its divisors is an integer number (156474150).

Almost surely, 2^2219845544 is an apocalyptic number.

It is an amenable number.

2219845544 is an abundant number, since it is smaller than the sum of its proper divisors (2787327256).

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

2219845544 is a wasteful number, since it uses less digits than its factorization.

2219845544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086353 (or 2086349 counting only the distinct ones).

The product of its digits is 460800, while the sum is 44.

The square root of 2219845544 is about 47115.2368560320. The cubic root of 2219845544 is about 1304.4904954063.

The spelling of 2219845544 in words is "two billion, two hundred nineteen million, eight hundred forty-five thousand, five hundred forty-four".