2219456904 has 64 divisors (see below), whose sum is σ = 6545879040. Its totient is φ = 613673280.

The previous prime is 2219456893. The next prime is 2219456909. The reversal of 2219456904 is 4096549122.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (2219456909) 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 15 ways as a sum of consecutive naturals, for example, 207874 + ... + 218289.

It is an arithmetic number, because the mean of its divisors is an integer number (102279360).

Almost surely, 2^2219456904 is an apocalyptic number.

2219456904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2219456904 is an abundant number, since it is smaller than the sum of its proper divisors (4326422136).

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

2219456904 is a wasteful number, since it uses less digits than its factorization.

2219456904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426210 (or 426206 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 2219456904 is about 47111.1123197065. The cubic root of 2219456904 is about 1304.4143629660.

The spelling of 2219456904 in words is "two billion, two hundred nineteen million, four hundred fifty-six thousand, nine hundred four".