1840398336 has 180 divisors, whose sum is σ = 6079458112. Its totient is φ = 525533184.

The previous prime is 1840398293. The next prime is 1840398379. The reversal of 1840398336 is 6338930481.

It is an interprime number because it is at equal distance from previous prime (1840398293) and next prime (1840398379).

It is a junction number, because it is equal to n+sod(n) for n = 1840398291 and 1840398300.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1031301 + ... + 1033083.

Almost surely, 2^1840398336 is an apocalyptic number.

1840398336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1840398336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3039729056).

1840398336 is an abundant number, since it is smaller than the sum of its proper divisors (4239059776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1840398336 is an equidigital number, since it uses as much as digits as its factorization.

1840398336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824 (or 1795 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 1840398336 is about 42899.8640557287. The cubic root of 1840398336 is about 1225.4735552982.

The spelling of 1840398336 in words is "one billion, eight hundred forty million, three hundred ninety-eight thousand, three hundred thirty-six".