2219031780 has 48 divisors (see below), whose sum is σ = 7100903040. Its totient is φ = 507207168.

The previous prime is 2219031779. The next prime is 2219031803. The reversal of 2219031780 is 871309122.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2641285 + ... + 2642124.

It is an arithmetic number, because the mean of its divisors is an integer number (147935480).

Almost surely, 2^2219031780 is an apocalyptic number.

2219031780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2219031780 is an abundant number, since it is smaller than the sum of its proper divisors (4881871260).

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

2219031780 is a wasteful number, since it uses less digits than its factorization.

2219031780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5283428 (or 5283426 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 2219031780 is about 47106.6001744978. The cubic root of 2219031780 is about 1304.3310733317.

The spelling of 2219031780 in words is "two billion, two hundred nineteen million, thirty-one thousand, seven hundred eighty".