1810019996 has 12 divisors (see below), whose sum is σ = 3167837400. Its totient is φ = 904923600.

The previous prime is 1810019993. The next prime is 1810020019. The reversal of 1810019996 is 6999100181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1810019993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58730 + ... + 84078.

It is an arithmetic number, because the mean of its divisors is an integer number (263986450).

Almost surely, 2^1810019996 is an apocalyptic number.

It is an amenable number.

1810019996 is a deficient number, since it is larger than the sum of its proper divisors (1357817404).

1810019996 is a wasteful number, since it uses less digits than its factorization.

1810019996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43204 (or 43202 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 44.

The square root of 1810019996 is about 42544.3297749536. The cubic root of 1810019996 is about 1218.6933955530.

The spelling of 1810019996 in words is "one billion, eight hundred ten million, nineteen thousand, nine hundred ninety-six".