1819043472 has 20 divisors (see below), whose sum is σ = 4699195760. Its totient is φ = 606347808.

The previous prime is 1819043467. The next prime is 1819043483. The reversal of 1819043472 is 2743409181.

It is a self number, because there is not a number n which added to its sum of digits gives 1819043472.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18948322 + ... + 18948417.

It is an arithmetic number, because the mean of its divisors is an integer number (234959788).

Almost surely, 2^1819043472 is an apocalyptic number.

1819043472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1819043472 is an abundant number, since it is smaller than the sum of its proper divisors (2880152288).

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

1819043472 is a wasteful number, since it uses less digits than its factorization.

1819043472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37896750 (or 37896744 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 1819043472 is about 42650.2458609561. The cubic root of 1819043472 is about 1220.7152197886.

The spelling of 1819043472 in words is "one billion, eight hundred nineteen million, forty-three thousand, four hundred seventy-two".