2018398272 has 224 divisors, whose sum is σ = 6188659200. Its totient is φ = 574156800.

The previous prime is 2018398247. The next prime is 2018398273. The reversal of 2018398272 is 2728938102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2018398273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7182772 + ... + 7183052.

Almost surely, 2^2018398272 is an apocalyptic number.

2018398272 is a gapful number since it is divisible by the number (22) 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 2018398272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3094329600).

2018398272 is an abundant number, since it is smaller than the sum of its proper divisors (4170260928).

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

2018398272 is a wasteful number, since it uses less digits than its factorization.

2018398272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505 (or 495 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 2018398272 is about 44926.5875846363. The cubic root of 2018398272 is about 1263.7726584668.

The spelling of 2018398272 in words is "two billion, eighteen million, three hundred ninety-eight thousand, two hundred seventy-two".