240000491808 has 768 divisors, whose sum is σ = 924618240000. Its totient is φ = 58674585600.

The previous prime is 240000491791. The next prime is 240000491879. The reversal of 240000491808 is 808194000042.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 228789268 + ... + 228790316.

It is an arithmetic number, because the mean of its divisors is an integer number (1203930000).

Almost surely, 2^240000491808 is an apocalyptic number.

240000491808 is a gapful number since it is divisible by the number (28) 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 240000491808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (462309120000).

240000491808 is an abundant number, since it is smaller than the sum of its proper divisors (684617748192).

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

240000491808 is a wasteful number, since it uses less digits than its factorization.

240000491808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1286 (or 1272 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The spelling of 240000491808 in words is "two hundred forty billion, four hundred ninety-one thousand, eight hundred eight".