1518775040 has 72 divisors (see below), whose sum is σ = 3647706048. Its totient is φ = 605880320.

The previous prime is 1518775039. The next prime is 1518775043. The reversal of 1518775040 is 405778151.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1518774985 and 1518775003.

It is not an unprimeable number, because it can be changed into a prime (1518775043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 550304 + ... + 553056.

It is an arithmetic number, because the mean of its divisors is an integer number (50662584).

Almost surely, 2^1518775040 is an apocalyptic number.

1518775040 is a gapful number since it is divisible by the number (10) 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 1518775040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1823853024).

1518775040 is an abundant number, since it is smaller than the sum of its proper divisors (2128931008).

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

1518775040 is an equidigital number, since it uses as much as digits as its factorization.

1518775040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205 (or 3191 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 38.

The square root of 1518775040 is about 38971.4644323254. The cubic root of 1518775040 is about 1149.4704657204.

The spelling of 1518775040 in words is "one billion, five hundred eighteen million, seven hundred seventy-five thousand, forty".