618047808 has 112 divisors (see below), whose sum is σ = 1967301120. Its totient is φ = 167284224.

The previous prime is 618047803. The next prime is 618047813. The reversal of 618047808 is 808740816.

It is an interprime number because it is at equal distance from previous prime (618047803) and next prime (618047813).

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 618047808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618047803) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13435 + ... + 37637.

Almost surely, 2^618047808 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 618047808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (983650560).

618047808 is an abundant number, since it is smaller than the sum of its proper divisors (1349253312).

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

618047808 is a wasteful number, since it uses less digits than its factorization.

618047808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24244 (or 24234 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 618047808 is about 24860.5673306142. The cubic root of 618047808 is about 851.8059907832.

The spelling of 618047808 in words is "six hundred eighteen million, forty-seven thousand, eight hundred eight".