2018774720 has 28 divisors (see below), whose sum is σ = 4807208064. Its totient is φ = 807509760.

The previous prime is 2018774713. The next prime is 2018774731. The reversal of 2018774720 is 274778102.

It is a happy number.

It is a super-2 number, since 2×2018774720² = 8150902740222156800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3154016 + ... + 3154655.

Almost surely, 2^2018774720 is an apocalyptic number.

2018774720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2018774720 is an abundant number, since it is smaller than the sum of its proper divisors (2788433344).

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

2018774720 is an equidigital number, since it uses as much as digits as its factorization.

2018774720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6308688 (or 6308678 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 38.

The square root of 2018774720 is about 44930.7769797051. The cubic root of 2018774720 is about 1263.8512216065.

The spelling of 2018774720 in words is "two billion, eighteen million, seven hundred seventy-four thousand, seven hundred twenty".