618937344 has 132 divisors (see below), whose sum is σ = 1801032480. Its totient is φ = 204718080.

The previous prime is 618937321. The next prime is 618937381. The reversal of 618937344 is 443739816.

It is a self number, because there is not a number n which added to its sum of digits gives 618937344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2202484 + ... + 2202764.

Almost surely, 2^618937344 is an apocalyptic number.

618937344 is a gapful number since it is divisible by the number (64) 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 618937344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (900516240).

618937344 is an abundant number, since it is smaller than the sum of its proper divisors (1182095136).

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

618937344 is a wasteful number, since it uses less digits than its factorization.

618937344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 525 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 618937344 is about 24878.4513987507. The cubic root of 618937344 is about 852.2144537196.

The spelling of 618937344 in words is "six hundred eighteen million, nine hundred thirty-seven thousand, three hundred forty-four".