1798000919 has 16 divisors (see below), whose sum is σ = 2204181504. Its totient is φ = 1443208800.

The previous prime is 1798000909. The next prime is 1798000979. The reversal of 1798000919 is 9190008971.

It is not a de Polignac number, because 1798000919 - 2¹⁶ = 1797935383 is a prime.

It is a super-2 number, since 2×1798000919² = 6465614609449689122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1798000919.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1798000909) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270047 + ... + 276624.

It is an arithmetic number, because the mean of its divisors is an integer number (137761344).

Almost surely, 2^1798000919 is an apocalyptic number.

1798000919 is a deficient number, since it is larger than the sum of its proper divisors (406180585).

1798000919 is a wasteful number, since it uses less digits than its factorization.

1798000919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546718.

The product of its (nonzero) digits is 40824, while the sum is 44.

The square root of 1798000919 is about 42402.8409307678. The cubic root of 1798000919 is about 1215.9899058398.

The spelling of 1798000919 in words is "one billion, seven hundred ninety-eight million, nine hundred nineteen", and thus it is an aban number.