1912843384 has 16 divisors (see below), whose sum is σ = 3608060400. Its totient is φ = 950693952.

The previous prime is 1912843381. The next prime is 1912843403. The reversal of 1912843384 is 4833482191.

It is a self number, because there is not a number n which added to its sum of digits gives 1912843384.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912843381) 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, 714549 + ... + 717220.

It is an arithmetic number, because the mean of its divisors is an integer number (225503775).

Almost surely, 2^1912843384 is an apocalyptic number.

It is an amenable number.

1912843384 is a deficient number, since it is larger than the sum of its proper divisors (1695217016).

1912843384 is a wasteful number, since it uses less digits than its factorization.

1912843384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431942 (or 1431938 counting only the distinct ones).

The product of its digits is 165888, while the sum is 43.

The square root of 1912843384 is about 43736.0650264744. The cubic root of 1912843384 is about 1241.3468248592.

The spelling of 1912843384 in words is "one billion, nine hundred twelve million, eight hundred forty-three thousand, three hundred eighty-four".