1844199749 has 8 divisors (see below), whose sum is σ = 2109000960. Its totient is φ = 1579734576.

The previous prime is 1844199743. The next prime is 1844199751. The reversal of 1844199749 is 9479914481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1844199749 - 2²⁴ = 1827422533 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1844199694 and 1844199703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1844199743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72134 + ... + 94295.

It is an arithmetic number, because the mean of its divisors is an integer number (263625120).

Almost surely, 2^1844199749 is an apocalyptic number.

It is an amenable number.

1844199749 is a deficient number, since it is larger than the sum of its proper divisors (264801211).

1844199749 is a wasteful number, since it uses less digits than its factorization.

1844199749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168019.

The product of its digits is 2612736, while the sum is 56.

The square root of 1844199749 is about 42944.1468537914. The cubic root of 1844199749 is about 1226.3167291609.

The spelling of 1844199749 in words is "one billion, eight hundred forty-four million, one hundred ninety-nine thousand, seven hundred forty-nine".