618446488 has 48 divisors (see below), whose sum is σ = 1280773080. Its totient is φ = 279945600.

The previous prime is 618446483. The next prime is 618446509. The reversal of 618446488 is 884644816.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618446483) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2566048 + ... + 2566288.

Almost surely, 2^618446488 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 618446488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (640386540).

618446488 is an abundant number, since it is smaller than the sum of its proper divisors (662326592).

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

618446488 is an equidigital number, since it uses as much as digits as its factorization.

618446488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521 (or 254 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 49.

The square root of 618446488 is about 24868.5843585838. The cubic root of 618446488 is about 851.9891076950.

The spelling of 618446488 in words is "six hundred eighteen million, four hundred forty-six thousand, four hundred eighty-eight".