2219245442 has 6 divisors (see below), whose sum is σ = 3328968099. Its totient is φ = 1109589410.

The previous prime is 2219245423. The next prime is 2219245447. The reversal of 2219245442 is 2445429122.

It can be written as a sum of positive squares in only one way, i.e., 1109622721 + 1109622721 = 33311^2 + 33311^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=33311.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2219245447) 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, 49967 + ... + 83277.

Almost surely, 2^2219245442 is an apocalyptic number.

2219245442 is a deficient number, since it is larger than the sum of its proper divisors (1109722657).

2219245442 is an frugal number, since it uses more digits than its factorization.

2219245442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66624 (or 33313 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 2219245442 is about 47108.8679762102. The cubic root of 2219245442 is about 1304.3729349887.

The spelling of 2219245442 in words is "two billion, two hundred nineteen million, two hundred forty-five thousand, four hundred forty-two".