1819042460 has 24 divisors (see below), whose sum is σ = 3820851216. Its totient is φ = 727452800.

The previous prime is 1819042453. The next prime is 1819042471. The reversal of 1819042460 is 642409181.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1819042460.

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, 122435 + ... + 136485.

It is an arithmetic number, because the mean of its divisors is an integer number (159202134).

Almost surely, 2^1819042460 is an apocalyptic number.

1819042460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1819042460 is an abundant number, since it is smaller than the sum of its proper divisors (2001808756).

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

1819042460 is a wasteful number, since it uses less digits than its factorization.

1819042460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20533 (or 20531 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 1819042460 is about 42650.2339970134. The cubic root of 1819042460 is about 1220.7149934125.

The spelling of 1819042460 in words is "one billion, eight hundred nineteen million, forty-two thousand, four hundred sixty".