1819719324 has 24 divisors (see below), whose sum is σ = 4717791120. Its totient is φ = 606573072.

The previous prime is 1819719301. The next prime is 1819719337. The reversal of 1819719324 is 4239179181.

It is a super-2 number, since 2×1819719324² = 6622756836278033952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1819719324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8424519 + ... + 8424734.

It is an arithmetic number, because the mean of its divisors is an integer number (196574630).

Almost surely, 2^1819719324 is an apocalyptic number.

It is an amenable number.

1819719324 is an abundant number, since it is smaller than the sum of its proper divisors (2898071796).

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

1819719324 is a wasteful number, since it uses less digits than its factorization.

1819719324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16849266 (or 16849258 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 1819719324 is about 42658.1683151070. The cubic root of 1819719324 is about 1220.8663836062.

The spelling of 1819719324 in words is "one billion, eight hundred nineteen million, seven hundred nineteen thousand, three hundred twenty-four".