1204051518 has 48 divisors (see below), whose sum is σ = 2733284736. Its totient is φ = 382338000.

The previous prime is 1204051487. The next prime is 1204051529. The reversal of 1204051518 is 8151504021.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1204051491 and 1204051500.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 98121 + ... + 109707.

It is an arithmetic number, because the mean of its divisors is an integer number (56943432).

Almost surely, 2^1204051518 is an apocalyptic number.

1204051518 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1204051518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1366642368).

1204051518 is an abundant number, since it is smaller than the sum of its proper divisors (1529233218).

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

1204051518 is a wasteful number, since it uses less digits than its factorization.

1204051518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11869 (or 11866 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 1204051518 is about 34699.4454998924. The cubic root of 1204051518 is about 1063.8531647439.

Adding to 1204051518 its reverse (8151504021), we get a palindrome (9355555539).

The spelling of 1204051518 in words is "one billion, two hundred four million, fifty-one thousand, five hundred eighteen".