1842818728 has 8 divisors (see below), whose sum is σ = 3455285130. Its totient is φ = 921409360.

The previous prime is 1842818689. The next prime is 1842818729. The reversal of 1842818728 is 8278182481.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1247361124 + 595457604 = 35318^2 + 24402^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1842818729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115176163 + ... + 115176178.

Almost surely, 2^1842818728 is an apocalyptic number.

It is an amenable number.

1842818728 is a deficient number, since it is larger than the sum of its proper divisors (1612466402).

1842818728 is a wasteful number, since it uses less digits than its factorization.

1842818728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230352347 (or 230352343 counting only the distinct ones).

The product of its digits is 458752, while the sum is 49.

The square root of 1842818728 is about 42928.0645731903. The cubic root of 1842818728 is about 1226.0105453951.

The spelling of 1842818728 in words is "one billion, eight hundred forty-two million, eight hundred eighteen thousand, seven hundred twenty-eight".