2018418720 has 48 divisors (see below), whose sum is σ = 6358020480. Its totient is φ = 538244864.

The previous prime is 2018418707. The next prime is 2018418749. The reversal of 2018418720 is 278148102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2102040 + ... + 2102999.

It is an arithmetic number, because the mean of its divisors is an integer number (132458760).

Almost surely, 2^2018418720 is an apocalyptic number.

2018418720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2018418720 is an abundant number, since it is smaller than the sum of its proper divisors (4339601760).

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

2018418720 is a wasteful number, since it uses less digits than its factorization.

2018418720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4205057 (or 4205049 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 2018418720 is about 44926.8151553168. The cubic root of 2018418720 is about 1263.7769261307.

The spelling of 2018418720 in words is "two billion, eighteen million, four hundred eighteen thousand, seven hundred twenty".