818116740 has 240 divisors, whose sum is σ = 2973989760. Its totient is φ = 186701760.

The previous prime is 818116727. The next prime is 818116759. The reversal of 818116740 is 47611818.

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

It is a junction number, because it is equal to n+sod(n) for n = 818116695 and 818116704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1296225 + ... + 1296855.

It is an arithmetic number, because the mean of its divisors is an integer number (12391624).

Almost surely, 2^818116740 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 818116740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1486994880).

818116740 is an abundant number, since it is smaller than the sum of its proper divisors (2155873020).

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

818116740 is a wasteful number, since it uses less digits than its factorization.

818116740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677 (or 648 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The square root of 818116740 is about 28602.7400785309. The cubic root of 818116740 is about 935.2730631241.

The spelling of 818116740 in words is "eight hundred eighteen million, one hundred sixteen thousand, seven hundred forty".