618450272 has 96 divisors (see below), whose sum is σ = 1369146240. Its totient is φ = 272609280.

The previous prime is 618450251. The next prime is 618450307. The reversal of 618450272 is 272054816.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2014343 + ... + 2014649.

It is an arithmetic number, because the mean of its divisors is an integer number (14261940).

Almost surely, 2^618450272 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 618450272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (684573120).

618450272 is an abundant number, since it is smaller than the sum of its proper divisors (750695968).

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

618450272 is a wasteful number, since it uses less digits than its factorization.

618450272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484 (or 476 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 618450272 is about 24868.6604383911. The cubic root of 618450272 is about 851.9908453394.

The spelling of 618450272 in words is "six hundred eighteen million, four hundred fifty thousand, two hundred seventy-two".