1840036399 has 8 divisors (see below), whose sum is σ = 2003670000. Its totient is φ = 1683081792.

The previous prime is 1840036357. The next prime is 1840036411. The reversal of 1840036399 is 9936300481.

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

It is a cyclic number.

It is not a de Polignac number, because 1840036399 - 2⁹ = 1840035887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1840036309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1669174 + ... + 1670275.

It is an arithmetic number, because the mean of its divisors is an integer number (250458750).

Almost surely, 2^1840036399 is an apocalyptic number.

1840036399 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1840036399 is a deficient number, since it is larger than the sum of its proper divisors (163633601).

1840036399 is a wasteful number, since it uses less digits than its factorization.

1840036399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3339497.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 1840036399 is about 42895.6454549876. The cubic root of 1840036399 is about 1225.3932152086.

The spelling of 1840036399 in words is "one billion, eight hundred forty million, thirty-six thousand, three hundred ninety-nine".