1840018008 has 64 divisors (see below), whose sum is σ = 4728366720. Its totient is φ = 596332800.

The previous prime is 1840017983. The next prime is 1840018039. The reversal of 1840018008 is 8008100481.

It is a super-3 number, since 3×1840018008³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299043 + ... + 305133.

It is an arithmetic number, because the mean of its divisors is an integer number (73880730).

Almost surely, 2^1840018008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1840018008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2364183360).

1840018008 is an abundant number, since it is smaller than the sum of its proper divisors (2888348712).

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

1840018008 is a wasteful number, since it uses less digits than its factorization.

1840018008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6448 (or 6444 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 1840018008 is about 42895.4310853732. The cubic root of 1840018008 is about 1225.3891326297.

Adding to 1840018008 its reverse (8008100481), we get a palindrome (9848118489).

The spelling of 1840018008 in words is "one billion, eight hundred forty million, eighteen thousand, eight".