2118440304 has 200 divisors, whose sum is σ = 6431794688. Its totient is φ = 672312960.

The previous prime is 2118440293. The next prime is 2118440351. The reversal of 2118440304 is 4030448112.

2118440304 is a `hidden beast` number, since 211 + 8 + 440 + 3 + 0 + 4 = 666.

It is a super-2 number, since 2×2118440304² = 8975578643223224832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2691399 + ... + 2692185.

Almost surely, 2^2118440304 is an apocalyptic number.

2118440304 is a gapful number since it is divisible by the number (24) 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 2118440304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3215897344).

2118440304 is an abundant number, since it is smaller than the sum of its proper divisors (4313354384).

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

2118440304 is a wasteful number, since it uses less digits than its factorization.

2118440304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The square root of 2118440304 is about 46026.5174002987. The cubic root of 2118440304 is about 1284.3165434954.

Adding to 2118440304 its reverse (4030448112), we get a palindrome (6148888416).

The spelling of 2118440304 in words is "two billion, one hundred eighteen million, four hundred forty thousand, three hundred four".